Many factors can impact hair growth. One is hair care—or lack thereof—such as heat damage and harmful ingredients in hair products. Others include medical conditions, hormones, aging, and stress. As a dermatology nurse, I’ve seen each of these factors and the hair loss they cause.
Hair supplements aren’t meant to cure hair loss conditions but are a resource to nurture hair. They contain essential nutrients to address vitamin deficiencies and encourage hair growth. To guide you in selecting the right supplement for your hair concerns, we consulted physicians to assemble a list of the top eight.
Medical disclaimer: This article is intended for educational and informational purposes only. It is not intended as a substitute for medical advice. For health advice, contact a licensed healthcare provider.
Our picks for the best vitamins for hair growth
- Best for men: Hims Hair Loss Treatment
- Best for women: Roman Womens Oral Minoxidil
- Best for hair growth and thickness: Nutrafol Hair Growth Nutraceutical
- Best budget: Happy Head Supercapsule
- Best with biotin: MD Hair Regrowth Supplements
- Best multivitamin: Centrum Multivitamin Tablet for Women
- Best for hair and nail growth: Hairmax Hair, Skin & Nails Supplements
- Best gummy: Vegamour Biotin Gummies
Compare vitamins for hair growth
Hims Hair Loss Treatment | Roman Womens Oral Minoxidil | Nutrafol Hair Growth Nutraceutical | Happy Head Supercapsule | MD Hair Regrowth Supplements | Centrum Multivitamin Tablet for Women | Hairmax Hair, Skin & Nails Supplements | Vegamour Biotin Gummies | |
Rating | ||||||||
Price per dose | $1.50 | $0.53 | $2.93 | 1.20 | $1.40 | $0.07 | $1.00 | $1.20 |
Key ingredients | Minoxidil, Finesteride | Minoxidil | Biotin, DHT blockers, Marine Collagen Peptide, Keratin | Vitamin D3, Finesteride, Minoxidil | DHT blockers, Ashwagandha, biotin, vitamins B6, D, E | Biotin, Zinc, Folate Vitamins A, B12, D, E | Niacin, Biotin, Zinc, Vitamin B6 | Biotin, Zinc, Vitamins A, B6, B12, C,D, E |
Dosage | 1 tablet | 1 tablet | 4 capsules | 1 capsule | 1 capsule | 1 tablet | 2 capsules | 1 gummy |
Form | Tablet | Tablet | Capsules | Capsule | Capsule | Tablet | Capsules | Gummy |
Best vitamins for hair growth for men: Hims Hair Loss Treatment
Key product features
What you should know
Hims Hair Loss Treatment includes two effective medications. The goal is to stop hair loss and foster hair regrowth.
- Hims Hair Loss Treatment supplements are moderately priced at $1.50 per dose and contain vitamins and drug-strength ingredients.
- The supplement is best for men looking to maximize their hair growth from a prescription.
- Hims subscribers may be able to combine oral and topical treatments
Why we like Hims Hair Loss Treatment as best for men
Hims Hair Loss Treatment pairs two drugs to treat hair loss in a chewable, citrus-flavored tablet. It provides biotin and vitamins B5, B6, and C. However, the main ingredients are finasteride and minoxidil. Finasteride is another common medication often prescribed for hair loss treatment. It treats hair loss by reducing the androgen hormone DHT. (1) Various case studies have looked at the effectiveness of both medications. Many show positive results. For example, one study showed that taking just 1 mg of finasteride has improved hair growth. (1)
The supplement also comes in a topical spray. Hims creates a personalized treatment plan for men struggling with male-pattern hair loss. The plan includes an initial online consultation, during which users fill out a detailed questionnaire about their health history, hair loss patterns, and treatment goals. This is followed by a virtual consultation with a licensed healthcare provider who reviews the information and prescribes a customized treatment plan based on the individual’s needs.
The medications can be shipped directly to your home if prescribed after the consultation. During our evaluation, we found that Hims also offers ongoing support, including follow-up consultations to monitor progress and make any necessary adjustments to the treatment plan.
The cost of Hims treatments varies depending on the specific medications and formulations prescribed. Typically, the monthly subscription for hair loss treatment starts at around $20 for the finasteride and can go up to $50 or more if additional treatments like the minoxidil topical spray are included. It’s important to note that Hims does not accept insurance coverage, so these are out-of-pocket expenses.
Some factors to consider involve possible side effects. Common side effects of finasteride include decreased libido, erectile dysfunction, and a decrease in semen production. Minoxidil can cause scalp irritation and unwanted facial hair growth if it comes in contact with other areas of the body. Discussing these potential side effects with the prescribing healthcare provider during the consultation process is crucial.
Related: The Best Hair Loss Treatments for Men
What customers are saying
Positive reviews on Trustpilot have seen hair regrowth. Some reviewers note how easy the app is to navigate to find the information they need for their specific treatment. Many love how easy it is to order and how efficient the delivery process is.
Other reviewers shared that the products were ineffective and experienced auto-renewing subscriptions. For example, Trustpilot reviewer Matt M. expresses, “The treatment didn’t work, and what I thought was a trial turned out to be an auto-renewing subscription at three times the price.”
Specs
Form | Chewy Tablet |
Price per dose | $1.50 |
Key ingredients | Finesteride, Minoxidil |
Dosage | One chewy tablet |
Best vitamins for hair growth for women: Roman Womens Oral Minoxidil
Key product features
What you should know
Ro Women’s Oral Minoxidil is a daily treatment prescribed by a doctor. Doctors prescribe oral minoxidil at low doses to treat hair loss. Its role is to slow down or stop hair loss.
- The cost is $0.53 per dose, which is reasonable considering other oral and topical medications on the market.
- Ideal for women who are struggling with hair loss from genetics or stress.
- People may prefer oral medication rather than using natural ingredients.
Why we like Roman Women’s Oral Minoxidil as best for women
Sometimes even the best natural supplements can’t give the results you want for your hair, which is why some people turn to prescriptions. Oral minoxidil is traditionally prescribed for the treatment of elevated blood pressure. However, for Ro Women’s Oral Minoxidil, minoxidil is an approved, off-label prescription drug. (2) Ro women’s health program focuses on helping women who struggle with hair loss. It creates a personalized treatment plan to ensure they can meet their hair goals.
Ro Women’s Oral Minoxidil helps with female pattern hair loss and telogen effluvium. This type of hair loss can occur after stress and can be acute or chronic. (3) Researchers believe minoxidil affects hair cells. It does so by increasing hair growth and decreasing hair loss. (2)
Minoxidil is available over the counter but only in topical form. Oral minoxidil is available by prescription. You can consider oral minoxidil if you prefer oral medications over topical form. Like any medication, there are side effects with minoxidil. “Since oral minoxidil is traditionally given to those with elevated blood pressure, the side effects of this medication are primarily cardiac in nature and include increased heart rate and rapid changes in blood pressure,” adds Kumar.
If you prefer a drug-free option, then minoxidil may not be suitable.
To get prescribed minoxidil through Ro, there is an initial online assessment followed by a virtual doctor’s visit. The medication can be delivered directly to your home or sent to a local pharmacy if prescribed. We found that the price for the subscription and service varies but typically includes the cost of the medication and any applicable fees.
The personalized treatment plan includes tailored advice and follow-ups from healthcare professionals to ensure the treatment aligns with the individual’s hair goals. Ro’s Women’s Oral Minoxidil is primarily marketed to women due to the specific hair loss patterns and conditions that women experience, which this program is designed to address.
Effects of oral minoxidil can vary, but many users start to see results within three to six months of consistent use. However, the full effects may take up to a year to become noticeable.
Specs
Form | Tablet |
Price per dose | $0.53 |
Key ingredients | Minoxidil |
Dosage | One tablet |
Best vitamins for hair growth and thickness: Nutrafol Hair Growth Nutraceutical
Key product features
What you should know
Nutrafol Hair Growth Nutraceutical contains many natural ingredients to achieve healthier hair.
- For $2.93 per dose, this supplement is one of the most expensive on the market.
- Nutrafol offers different formulas for men and women. They are distinctive for various stages of life and lifestyles.
- In addition to hair benefits, it includes ingredients that may promote better sleep, decrease stress, and clear skin, all of which help promote healthy hair growth.
Why we like Nutrafol Hair Growth Nutraceutical as best for hair growth and thickness
Nutrafol Hair Growth Nutraceutical is a popular supplement. However, it’s the most expensive at $2.93 per dose. Each bottle contains 120 capsules, which is a month’s supply.
Nutrafol has ashwagandha to help manage stress levels. It also contains natural DHT blockers, like saw palmetto and horsetail extract, to reduce hair thinning. Nutrafol also has marine collagen peptides from fish, which are building blocks that help form stronger hair. (4) Another eye-catching ingredient is keratin. Keratin is a major protein for hair, contributing to its strength and reduction in breakage. (5)
One of Nutrafol’s standout features is its comprehensive formula that addresses multiple underlying causes of hair loss, including stress, hormonal imbalances, and nutritional deficiencies. The supplement also includes biotin, zinc, selenium, and vitamin E, essential nutrients for healthy hair growth.
For some consumers, a downside is taking four capsules daily. The high price is another point in the negative category. I’ve tried these supplements but didn’t see results because I needed to consume them daily. I struggled to maintain a routine of taking four capsules a day. If you don’t like swallowing pills or find the value to be expensive, you may consider looking into a cheaper option with a smaller dosage.
Many users have reported positive results with Nutrafol, including thicker hair, reduced shedding, and improved hair strength and shine. However, as with any supplement, results can vary based on individual health conditions and consistency in taking the product.
Nutrafol also provides detailed information about its ingredients and their benefits, backed by clinical studies. Additionally, Nutrafol is free from drugs, gluten, soy, and artificial additives, making it a good choice for those with dietary restrictions or preferences for natural products.
For those concerned about the price, Nutrafol offers subscription plans that can reduce the cost per bottle and ensure you receive your supplements regularly without the hassle of reordering. One bottle will cost you $88, but if you sign up for the monthly delivery, it will cost around $79, saving you around 10%. If you subscribe for the three-month subscription, the total would be $224, which saves you around 15%.
To learn more about what this brand has to offer, check out our full Nutrafol review.
What customers are saying
Amazon reviewers have given this supplement an average of 4.3 out of 5 stars, with over 11,000 ratings. Most buyers praise the product’s effectiveness and are shocked by its results.
Like any supplement, only some have the same experience. Amazon-verified buyer Megan states, “I have barely seen any hair regrowth besides a little bit on the top of my head. I am still continuing to have super thinning hair and no hair regrowth has happened on the sides of my head where it’s thinning the most.”
Specs
Form | Capsule |
Price per dose | $2.93 |
Key ingredients | Biotin, DHT blockers, Zinc, Marine Collagen Peptide, Keratin |
Dosage | Four capsules |
Best budget vitamins for hair growth: Happy Head Supercapsule
Key product features
What you should know
Happy Head Supercapsule uses stronger medications to maximize hair growth. It has finasteride, dutasteride, spironolactone, minoxidil, and vitamin D3.
- A capsule with two medications and vitamin D3 in one bottle comes at a cost-effective price.
- This is for men and women looking to maximize their hair growth through prescription use.
- Happy Head subscribers may be able to combine oral and topical treatments.
Why we like Happy Head Supercapsule as best for budget
When it comes to a treatment plan, it’s essential to look for a product that offers effective ingredients and a reasonable price. Happy Head Supercapsule is our choice for the best budget hair growth vitamin. It’s a three-ingredient bottle consisting of stronger medications to support hair growth results.
Happy Head’s Supercapsule is available to both men and women. It includes minoxidil and vitamin D3. The third ingredient can be either finasteride, dutasteride, or spironolactone. These medications act as DHT blockers. Based on clinical studies, dutasteride is three times stronger than finasteride. (6) Dutasteride suppresses DHT levels by 98%, while finasteride achieves a 71% suppression. (6) Spironolactone is effective for hair loss, especially when combined with minoxidil. (7) Vitamin D3 is beneficial, as few studies suggest vitamin D deficiency links to hair loss. (8)
Happy Head subscribers may be able to combine oral and topical treatments, enhancing the regimen’s overall effectiveness.
Any drug can have side effects, and it’s crucial to discuss them with a provider before starting treatment. Common side effects of finasteride and dutasteride include decreased libido, erectile dysfunction, and gynecomastia (enlarged breast tissue in men). Spironolactone can cause side effects such as dizziness, fatigue, and electrolyte imbalances. Minoxidil might cause scalp irritation, unwanted facial hair growth, and, in rare cases, heart-related issues. Vitamin D3 is generally well-tolerated but can cause hypercalcemia (high calcium levels in the blood) if taken in excessive amounts.
Happy Head does not accept insurance coverage, and some people may prefer something other than a monthly subscription. Our evaluation revealed that the subscription plans involve an initial online consultation where users fill out a detailed questionnaire. This is followed by a virtual consultation with a licensed healthcare provider who will assess the information provided and prescribe a customized treatment plan. If approved, the medication will be delivered to your door.
The cost of the Happy Head Supercapsule can vary depending on the specific ingredients chosen, but it is generally marketed as an affordable option compared to other hair growth treatments. The monthly subscription ensures that users receive their medication regularly without the hassle of reordering. The Supercapsule starts at $79, but first-time users get 60% off, making it $32 for your first order.
Results from using Happy Head Supercapsul can vary, but many users report seeing improvements within three to six months of consistent use. However, like other treatments, it may take up to a year to see significant results.
What customers are saying
Happy Head Supercapsules earned mixed reviews on Trustpilot. Customers with positive reviews highlight the convenience and effectiveness of the Supercapsule. Many users appreciate the ability to customize their treatment plan based on their specific needs and the combination of potent ingredients tailored to combat hair loss.
Some consumers report having trouble canceling their subscriptions. Trustpilot reviewer Ann B reports, “I’m Refusing to cancel my subscription online. Don’t sign up; you’ll never be able to cancel. They say it’s easy to cancel, but they make you fill out a form, offer discounts, and then tell you to call a phone number that nobody answers.”
Specs
Form | Capsule |
Price per dose | $1.20 |
Key ingredients | Finesteride, Dutasteride, Spironolactone, Minoxidil, Vitamin D3 |
Dosage | One tablet |
Best vitamin for hair growth with biotin: MD Hair Regrowth Supplements
Key product features
What you should know
MD Hair Regrowth is our best overall hair supplement, given its ingredients, moderate price range, and dosage.
- The cost is $1.40 per dose. MD Regrowth supplements have the key vitamins, minerals, and natural plant extracts to promote hair growth.
- It’s optimal for men and women with genetic or age-related hair loss.
- Supplements contain natural plant extracts to block DHT, an androgen hormone known to cause hair loss. (9)
Why we like MD Hair Regrowth as best with biotin
MD Hair Regrowth supplements are drug-free capsules that use plant extract ingredients to manage hair loss. Their natural dihydrotestosterone (DHT)-blockers are saw palmetto, nettle leaf, reishi, and maitake mushrooms. Ashwagandha is a plant that targets stress by reducing cortisol levels. In turn, it could strengthen hair and decrease breakage. (10)
The supplement also contains biotin, a popular ingredient for hair and nails. It’s a vitamin that may encourage hair and nail growth. However, there are few studies to support this. For instance, 18 case studies showed improvement using a biotin supplement. However, all cases had an underlying biotin deficiency. (8) Biotin deficiency has been linked to hair thinning, and supplementation can be beneficial if this is the reason for hair loss. However, the research behind biotin use and hair growth is limited. (11)
You’ll also find zinc, selenium, copper, folic acid, and vitamins B6, D, and E on the ingredient list. However, MD Hair Regrowth supplements lack vitamins A, C, and iron, which serve as antioxidants and protect the hair from free radicals. You can add these missing ingredients to your diet by consuming broccoli and pumpkin powders.
MD Hair Regrowth capsules are suitable for men and women looking to encourage hair growth from natural plant resources. However, few studies have researched the effectiveness of plant extracts for hair loss. One clinical study does show positive hair effects when using saw palmetto (12). However, the supplement may be less effective for individuals with advanced hair loss.
Some users may notice shedding within the first few months of using this product, but that goes away over time. Other common side effects include flaking, dryness, itching, and scalp irritation.
While MD Hair Regrowth’s price of $1.40 per serving is among the highest on our list, shoppers can earn a discount and free shipping when they bundle three bottles.
Specs
Form | Capsule |
Price per dose | $1.40 |
Key ingredients | DHT blockers, ashwagandha, biotin, vitamins B6, D, E |
Dosage | One capsule |
Best multivitamin for hair growth: Centrum Multivitamin Tablet for Women
Key product features
What you should know
Centrum’s multivitamin has a long list of micronutrients to help a woman’s overall wellness, which helps promote healthy hair growth. Hair growth is closely tied to overall health; deficiencies in specific vitamins and minerals can lead to hair thinning and loss. Centrum’s multivitamin helps create a foundation for healthy hair by ensuring the body receives an adequate supply of essential nutrients.
- For $0.07 per dose, these supplements have many ingredients for a cost-effective value.
- It’s best for adult women seeking nutritional support along with hair benefits.
- Supplements contain nutrients to boost energy, immunity, and metabolism, contributing to a healthier appearance. This ensures the body has the necessary building blocks to support overall wellness and hair growth.
Why we like Centrum Multivitamin Tablet for Women as best multivitamin
Centrum multivitamin tablet is one of the best multivitamins for women thanks to the essential ingredients to support your hair and vitamins to support metabolism, immunity, and energy. At a $0.07 price per dose, this bottle with 200 capsules makes it an affordable option for those seeking comprehensive nutritional support.
Micronutrients from a balanced diet ensure a normal hair follicle cycle. (8) Iron, vitamin D, folate, vitamin B12, and selenium may improve premature graying. (8) Centrum’s multivitamin includes these vital nutrients, which can help maintain healthy hair and prevent certain hair-related issues. However, it’s important to note that it may not be effective for hereditary causes of hair loss or thinning. There are limited studies directly discussing the relationship between hair loss and multivitamins, which means the effectiveness can vary from person to person.
Centrum’s multivitamin also provides many other essential vitamins and minerals contributing to overall wellness and hair growth. These include:
- Biotin and zinc: Both are essential for hair growth and repair. Biotin aids in producing keratin, an essential protein in hair structure, while zinc supports the health of oil glands around hair follicles, promoting a healthy scalp.
- Vitamin C and E: These powerful antioxidants protect hair follicles from damage by free radicals. Vitamin C also boosts collagen production, which strengthens hair strands, and Vitamin E enhances blood circulation in the scalp.
- Iron and Vitamin B12: Iron is necessary for producing hemoglobin, which carries oxygen to hair follicles, while Vitamin B12 is crucial for red blood cell formation. This helps ensure proper nutrient delivery to the scalp and hair follicles.
- Folate and Selenium: Folate aids in cell division and growth, which are important for hair follicle health, while selenium contributes to protecting cells from oxidative stress.
Centrum’s multivitamin is designed to fill nutritional gaps that may arise from diet, stress, and lifestyle factors. For those who may not get sufficient nutrients from their diet alone, this multivitamin can help ensure the body has all the necessary building blocks to support hair health and overall wellness. Your provider can confirm such deficiencies through a blood test, ensuring that you receive the right supplementation to address your specific needs.
What customers are saying
On Amazon, Centrum’s multivitamin has over 9,000 ratings, averaging around 4.6 out of 5 stars. Positive reviews praise the product’s value and quality. Many reviewers note the effectiveness of the multivitamin on their overall energy, hair health, and improved mood.
Meanwhile, there are customers with negative reviews. As Amazon reviewer Maria T. states, “I experience a very strong pain in my stomach that feels like ‘tugging,’ and it is extremely painful for almost an hour. The reviewer advises taking a large lunch meal to avoid the symptoms.”
Specs
Form | Tablet |
Price per dose | $0.07 |
Key ingredients | Biotin, Zinc, Folate, Vitamins A, B12, D, E |
Dosage | One tablet |
Best vitamins for hair and nail growth: Hairmax Hair, Skin & Nails Supplements
Key product features
What you should know
Hairmax incorporates essential herbs and minerals, including biotin and zinc, to encourage hair and nail growth. It’s suitable for all hair types and is an option for both men and women looking to support their hair and nail health.
- For $1.00 per dose, Hairmax’s capsules are priced more reasonably than most supplements on the market.
- Available for men and women focusing on improving hair thinning and nail growth.
- Contains natural DHT blockers and 2,500 mcg of biotin.
- The capsules have gelatin, milk, and soy.
Why we like Hairmax Hair, Skin & Nails Supplements as best for hair and nail growth
Those looking to support nail health in addition to hair benefits should consider Hairmax Hair, Skin, and Nails. Its list of ingredients includes a mixture of natural herbs and mineral blends to help reduce hair thinning, manage hair loss, and boost nail growth. The formulation consists of DHT blockers such as saw palmetto and beta-sitosterol, which help reduce the impact of DHT, a hormone that can contribute to hair loss.
The standout ingredient in this supplement is biotin, with Hairmax providing 2,500 mc per dose. In comparison, Nutrafol includes 3,000 mcg of biotin. While Nutrafol has a slightly higher dose, Hairmax offers a more affordable option at $1.00 per dose compared to Nutrafol’s $2.93 per dose.
Biotin is essential for the production of keratine, a protein that makes up the hair, skin, and nails. It can help strengthen and promote growth in these areas. In addition to biotin, Hairmax includes other beneficial ingredients such as niacin and keratin. Niacin, also known as vitamin B3, improves blood circulation to the hair follicles, increasing hair fullness and overall scalp health. Keratin, another key component, is a structural protein that helps strengthen hair and reduce breakage.
One study suggests that niacin offers a promising effect in increasing hair fullness by improving blood circulation to the hair follicle. (13) This mechanism is believed to enhance the delivery of essential nutrients to the hair roots, promoting healthier and stronger hair growth.
However, it is worth noting that Hairmax is missing other elements that may offer additional support for hair health, such as iron, omega-3 fatty acids, and vitamins A, C, D, and E. These nutrients are known for maintaining healthy hair growth and addressing potential deficiencies that could contribute to hair loss.
Hairmax’s comprehensive approach to hair and nail health makes it a viable option for those seeking a balanced supplement. Including DHT blockers, along with a substantial dose of biotin and other supportive minerals, helps create an effective formula for managing hair thinning and promoting overall hair and nail health.
What customers are saying
Customers have mixed reviews on the quality of the product. Positive reviewers say their hair and nails are growing faster.
Reviewers with negative results don’t notice any improvements or experience side effects. Take Amazon reviewer Ricky S., who shares, “I bought this because of hair loss and because it has blockers. But it caused terrible headaches. I stopped taking it to see if the headache would stop, and it did.”
Specs
Form | Capsule |
Price per dose | $1.00 |
Key ingredients | Niacin, Biotin, Zinc, DHT blockers |
Dosage | Two capsules |
Best gummy vitamin for hair growth: Vegamour Biotin Gummies
Key product features
What you should know
Vegamour biotin gummies nourish hair with essential vitamins in a flavorful gummy. The gummies contain a blend of biotin, zinc, and vitamins A, B, C, and E to promote overall hair wellness.
- Gummies cost $1.20 per dose, a reasonable price point for a hair growth supplement.
- Option for men and women who want thicker and stronger hair.
- Incorporates vitamins to support keratin and collagen production.
Why we like Vegamour Biotin Gummies as best gummy
Vegamour biotin gummies provide a tasty alternative for those seeking a hair growth supplement. They contain a blend of essential vitamins, including A, B, C, and E. Vitamins A, C, and E are known antioxidant properties (8), which help protect hair follicles from damage caused by free radicals. The gummy also includes a vitamin B complete, which comprises various B vitamins, including biotin.
Biotin, a key component in these gummies, is essential for hair and nail growth. Vegamour Biotin Gummies offer 5,000 mcg of biotin per gummy, more than what is typically found in other supplements. This high dose of biotin makes Vegamour a practical option for those looking to strengthen their hair and nails. While biotin overdosing is rare, it’s essential to be mindful of any symptoms of excess biotin intake, such as insomnia, excessive thirst, and increased urination. (14)
However, it’s worth noting that studies do not conclusively support biotin’s effects on hair growth in individuals without a biotin deficiency. Despite this, many users report positive results, which may be attributed to the overall nutritional boost the B vitamins provide.
Vegamour Biotin Gummies can be bought as a one-time purchase or subscribed to for monthly deliveries. Each dose costs $1.20, making it a mid-range option in terms of price. The gummies are an attractive alternative for those who prefer not to take pills, offering a convenient and enjoyable way to supplement their diet with essential vitamins for hair growth.
Vegamour Biotin gummies don’t have DHT blockers, so they may not be as effective for people with hair loss conditions related to DHT, such as male or female pattern baldness.
What customers are saying
Amazon reviewers highlight the positive effects on nail and hair growth. Amazon verified buyer Rett shares, “Delicious strawberry flavor! Hair and nails have grown stronger and healthier! I’m very happy!”Other customers report disappointment with the product’s quality, where vitamins arrive melted.
“I love these vitamins, but they were all melted together, and I had to throw them away. Better to get them directly from the website for better packaging,” says verified Amazon reviewer Charles W.
Specs
Form | Gummy |
Price per dose | $1.20 |
Key ingredients | Biotin, Zinc, Vitamins A, B complex, C, D, E |
Dosage | One gummy |
Our hair loss treatment testing methodology
Finding the right vitamins for hair growth can be daunting, given the extensive options and varying solutions’ effectiveness. Our mission is to simplify this process by providing comprehensive, reliable reviews based on rigorous testing and expert insights. We aim to empower you with the information you need to make the best decision for your hair health and overall well-being. Read our full methodology for more information on how we test hair loss treatments.
Testing criteria
Efficacy and reliability—40%
Efficacy and reliability are at the forefront of our hair loss treatment evaluation process. The primary concern for anyone seeking treatment is whether it will effectively promote hair growth and reduce shedding. This category carries the most weight in our scoring because a treatment’s effectiveness is critical to its value.
Here’s what we look for:
- Treatment efficacy
- Consistency
- Side effects
- Clinical support
- Dosage and application
Ease of use and accessibility—30%
A hair loss treatment’s ease of use and accessibility can greatly influence its effectiveness. If a treatment is cumbersome or difficult to apply, users are less likely to stick with it, diminishing its potential benefits. Ensuring these treatments are easy to understand and integrate into daily routines is crucial for sustained use and optimal results. We assess:
- Application process
- Instruction clarity
- Convenience
- Support resources
Value—20%
Evaluating the value of hair loss treatments encompasses the initial purchase price, long-term financial implications, and overall cost-effectiveness. A high-value treatment delivers reliable results without imposing excessive costs over time, providing meaningful benefits for the user’s investment.
We evaluate:
- Cost of the treatment
- Insurance coverage
- Long-term cost analysis
- Warranty
Customer experience—10%
A positive customer experience helps users feel supported, informed, and satisfied at every stage of their interaction with their hair loss treatment. This category considers multiple touchpoints, including customer service, delivery and packaging, and return policies. Prioritizing customer experience ensures that treatments meet technical and performance standards and provide a seamless and supportive user experience.
Our factors in this rating include:
- Customer service
- Delivery and packaging
- Return policy
How to choose the best vitamins for hair growth for you
When selecting the best vitamins for hair growth, there are a few factors that you should consider:
Identify your hair needs and concerns
Start by understanding what you specifically need—whether it’s reducing hair loss, increasing volume, strengthening strands, or encouraging faster growth. This may also depend on what exactly you’re experiencing with your hair. Are you having more shedding than normal? Is it getting thinner or more brittle? Whatever the answer may be could determine your next course of action.
Look for key ingredients available in the supplement
Certain vitamins and minerals are known for supporting hair health. (15) These include
- Biotin (Vitamin B7) for possible growth and thickness. (7)
- Vitamin A may help produce natural oils in the scalp. (24)
- Vitamin C is an antioxidant that may help protect hair follicles. (25)
- Vitamin D for potential follicle health. (27)
- Vitamin E may improve blood circulation in the scalp. (28)
- Iron and zinc are used to possibly strengthen strands and reduce breakage. (15)
Assess your diet and lifestyle
Check if your daily diet is low in any of the key nutrients above. If you already eat a balanced diet, you may not need a high-dose supplement. It is possible you may be able to improve your hair health by adjusting your diet. (30) A great way to start on this path is to consult your primary care provider about blood work to see how your levels for these vitamins currently fare. Then, you can work from there.
Choose quality brands
Look for supplements from reputable brands that use high-quality ingredients. It is helpful to choose vitamins certified by third-party organizations, such as NSF or USP.
Check dosage and form
Many vitamins come in pills, gummies, or powder. Gummies are convenient but often have less potency. (31) However, you may be more inclined to take a powder or gummy over a pill, which would provide more consistency in the long term. It’s important to pick the form and dosage that best suits your needs. Also, confirm that the dosage aligns with recommended dietary allowances to avoid any side effects from excessive intake.
Consider added benefits
Albeit not necessary, some hair growth vitamins also include added ingredients like collagen, keratin, or hyaluronic acid, which may improve the overall health and look of your skin and nails too. (32)
Consult a healthcare professional
When in doubt, seek a professional. If you’re unsure or have underlying health conditions, speak with a doctor or a licensed dermatologist. They can help determine what supplements would benefit you based on lab results or deficiencies.
What vitamins are good for hair growth?
There are several vitamins and minerals that may support hair growth and overall hair health. (15)
Biotin (Vitamin B7)
Biotin is part of the B-vitamin family and is vital for keratin production, the protein that makes up hair, skin, and nails. Biotin may help strengthen hair strands, reduce breakage, and encourage healthy growth. It also helps with the metabolism of fats and proteins, which nourishes hair at the follicle level. Some sources where you can find biotin are eggs, nuts, whole grains, and leafy greens. (7, 23)
Vitamin A
Vitamin A helps supports the production of sebum, the natural oil that keeps the scalp and hair moisturized. It is also an antioxidant, which helps fight free radical damage to the scalp. By keeping the scalp healthy, vitamin A helps prevent dryness and breakage, promoting stronger and healthier hair. Sweet potatoes, carrots, spinach, and dairy products are all good sources of the vitamin. (24)
Vitamin C
Vitamin C is an antioxidant that helps protect hair follicles from damage caused by free radicals. It also aids in collagen production, which is crucial for hair structure. It may help prevent hair from becoming brittle and weak while supporting the growth of new, stronger hair. Additionally, Vitamin C helps aids in iron absorption, another mineral essential for hair health. You can find the vitamin in citrus fruits, strawberries, bell peppers, and broccoli. (25)
Vitamin D
Known as the “sunshine vitamin,” Vitamin D is essential for supporting the creation of new hair follicles. Low vitamin D levels have been linked to hair loss and alopecia, so maintaining adequate levels may help prevent thinning and support overall hair density. You can get vitamin D from sun exposure, fatty fish (like salmon), fortified foods, and vitamin-specific supplements. (27)
Vitamin E
Vitamin E is a powerful antioxidant that may help reduce oxidative stress on the scalp. By improving blood circulation, Vitamin E helps support the oxygenation of hair follicles, which may enhance hair strength and growth. It also helps keep the scalp hydrated, which may prevent dryness and irritation. Eating nuts, seeds, spinach, and avocado may aid in supporting your vitamin E levels. (28)
Iron
Iron is crucial for red blood cell production, which helps carry oxygen to hair follicles, promoting growth. Iron deficiency, especially common in women, may lead to hair loss. Ensuring adequate iron intake helps maintain strong, healthy hair. You can find iron in red meat, lentils, spinach, and fortified cereals. (15, 29)
Zinc
Zinc is involved in DNA synthesis and protein production, both of which are vital for hair follicle health. It also helps keep the oil glands around the hair follicles working properly. Zinc deficiency may lead to hair loss, breakage, and scalp issues. Fortunately, you can increase your zinc levels with shellfish, meat, seeds, and legumes. (33)
Omega-3 fatty acids
Although not a vitamin, omega-3s are essential fatty acids that help nourish the hair and support scalp health. Omega-3s may reduce inflammation, promote hair thickness, and prevent hair follicle miniaturization, often associated with hair loss. Fatty fish (like salmon), flaxseeds, walnuts, and chia seeds are all excellent sources of omega-3s. (34)
Collagen
Collagen is a structural protein that helps support skin elasticity and build keratin in hair. Although our body naturally produces collagen, production may decrease with age, impacting hair health. Supplementing collagen may improve hair strength, prevent damage, and help keep the scalp healthy. Find the protein in collagen supplements, bone broth, and protein-rich foods (amino acids help the body make collagen). (35)
B-Vitamins Complex
The B-vitamins (B1, B2, B3, B5, B6, B9, and B12) may help with red blood cell formation, which is essential for carrying oxygen and nutrients to the scalp. (36) B vitamins also help reduce hair thinning, promote cell rejuvenation, and support hair strength. (36) Deficiency in B12, in particular, may lead to hair loss. (15) Add whole grains, eggs, nuts, leafy greens, and meat to your diet if you want to support your B12 levels.
How long do hair growth vitamins take to work?
It may take months to notice hair growth results. On average, healthy hair grows half an inch a month or six inches in one year. Manufacturers of hair growth supplements may specify a timeframe for results if you’re consistent with the recommended dosage. From our list, the timeframe ranges between three and six months. Consumers share seeing results within two months while others notice results over six months.
Are vitamins for hair growth safe?
Generally, vitamins for hair growth are safe if taken as directed. The Food and Drug Administration (FDA) regulates prescriptions and over-the-counter medications but doesn’t have to approve dietary supplements. (17) High-quality supplements certify their products through third-party testing. To name a few, you may come across labels on bottles such as NSF (National Science Foundation), CL (Consumer Lab), and USP (US Pharmacopeia).
Many hair growth supplements include common vitamins and minerals found in a daily multivitamin. Some supplements consist of a low-dose medication, such as minoxidil. Before starting any supplement, it’s important to consult with a healthcare professional.
If you’d like to learn about other options on the market, visit our complete guide on the best hair growth products.
FAQs
What vitamin am I lacking if my hair is falling out?
If you’re experiencing hair loss, it could happen for several factors, even ones unrelated to vitamins, like stress. (37) If it is related to vitamin deficiency, it may be due to one or more of the following vitamins and minerals:
Biotin (Vitamin B7)
Biotin is essential for keratin production, which helps strengthen hair. Low levels may lead to increased hair shedding and weak, brittle strands. Some potential symptoms of a biotin deficiency are brittle, thinning hair, skin rashes, and brittle nails. (7, 23)
Vitamin D
Vitamin D plays a key role in creating new hair follicles. A deficiency may lead to alopecia (a condition causing patchy hair loss) and thinning. Hair loss, fatigue, muscle weakness, and mood changes are all potential symptoms of a deficiency in this vitamin. (27)
Iron
Iron helps carry oxygen to hair follicles through red blood cells. Low iron levels, particularly common in women, may cause anemia, which may potentially lead to hair shedding. Watch out for these possible symptoms: fatigue, pale skin, brittle nails, and hair loss. (15, 29)
Vitamin B12
B12 supports red blood cell production, which helps carry oxygen to the scalp and hair follicles. Without enough B12, hair may become weak and prone to falling out. Some potential symptoms of a vitamin B12 deficiency are fatigue, weakness, memory problems, and hair loss. (15)
Zinc
Zinc is critical for DNA synthesis and protein production, both of which are necessary for hair growth. Zinc deficiency may disrupt the hormonal balance that regulates hair growth and shedding. Hair thinning, slow wound healing, and weakened immune function are possible symptoms of zinc deficiency. (33)
Vitamin C
Vitamin C is needed for collagen synthesis, which helps strengthen hair. It also helps in the absorption of iron, making it indirectly important for hair health. A few potential symptoms of vitamin C deficiency are hair brittleness, dry skin, easy bruising, and fatigue. (26)
Vitamin A
Vitamin A helps produce sebum, the scalp’s natural oil, which helps keep hair moisturized. However, excessive Vitamin A may also lead to hair loss, so balance is key. Look out for these potential symptoms: dry hair, scalp issues, and possible hair loss. (24)
Protein deficiency
Hair is primarily composed of keratin, a protein. Low protein intake can weaken hair structure, leading to breakage and hair fall. Hair shedding, brittle or dry hair, and weakened muscle mass may all be potential symptoms of a protein deficiency. (38)
Regardless, it’s important to consult a healthcare professional to confirm through blood tests if and where you may have deficiencies, as many of the symptoms overlap. Additionally, multiple factors could be contributing to your hair loss, like stress or poor diet. (15) Supplements or diet adjustments can help address any deficiencies, and a healthcare provider can recommend specific dosages based on your needs.
Do vitamins for hair growth really work?
So far, no conclusive study has proven that vitamins boost hair growth. However, minoxidil supplements are clinically proven to promote hair growth. Hair growth supplements may benefit individuals who lack a healthy diet and have nutritional deficiencies.
People struggling with hair loss can’t guarantee that a supplement will resolve the condition. Hair loss and thinning hair are complex processes. Effective treatment begins with identifying the underlying cause, which requires in-depth knowledge from a specialized healthcare professional, such as a dermatologist.
What is the best vitamin for hair growth?
Many vitamins and minerals help skin and hair, and no one vitamin is the most important. Some vitamins, like vitamin C, can help promote collagen specifically. Vitamin C is a key protein essential to maintaining a firm skin barrier and strong hair. Vitamin C also serves as an antioxidant to protect the skin and hair from free radical damage. (15)
What deficiency causes hair loss?
Zinc, iron, riboflavin, biotin, folate, and vitamin B12 deficiency may cause hair loss. (15) The American Academy of Dermatology Association suggests completing a blood test to confirm a deficiency. (20) Furthermore, dermatologists recommend taking a multivitamin instead of an alternative supplement. You can browse our list of the best multivitamins to help you choose the ideal one. Supplements can have a higher dosage of one nutrient, which could have potential side effects, such as stomach pain or nausea.
Which vitamins grow hair the fastest?
Increasing hair growth and reducing hair loss require numerous vitamins and minerals. Two of these to highlight are y are vitamin A and zinc. Topical retinoid, a form of vitamin A, helps form new hair follicles and maintain a normal hair growth cycle. (21) However, too much oral vitamin A can lead to hair loss. (15) Zinc is a mineral that increases cell growth and keeps a healthy scalp. (15)
Other vitamins and minerals that play a role in maintaining healthy hair and preventing hair loss include vitamins B Complex (including biotin, riboflavin, and folic acid), C, D, and E, as well as iron, and selenium. (15)
Does biotin work for hair growth?
Current case studies suggest biotin does work for hair growth. However, research suggests it primarily works well for individuals with acquired or inherited biotin deficiency. The Food and Drug Administration recommends adults consume 30 micrograms of biotin daily through their diet. (7)
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any diseases.
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References
- Androgenetic alopecia: MedlinePlus Genetics. (n.d.). https://medlineplus.gov/genetics/condition/androgenetic-alopecia/#causes
- Yerram, C., Jillella, A., & Reddy, V. (2023). Effects of Withania somnifera root extract serum application on hair health in healthy adults: A prospective, double-blind, randomized, parallel, placebo-controlled study. Journal of Ayurveda and integrative medicine, 14(6), 100817. https://pubmed.ncbi.nlm.nih.gov/38006746/
- Patel DP, Swink SM, Castelo-Soccio L. A Review of the Use of Biotin for Hair Loss. Skin Appendage Disord. 2017 Aug;3(3):166-169. doi: 10.1159/000462981. Epub 2017 Apr 27. PMID: 28879195; PMCID: PMC5582478.
- Evron, E., Juhasz, M., Babadjouni, A., & Mesinkovska, N. A. (2020). Natural Hair Supplement: Friend or Foe? Saw Palmetto, a Systematic Review in Alopecia. Skin appendage disorders, 6(6), 329–337. https://doi.org/10.1159/000509905
- American Pregnancy Association. (2021, December 9). Pregnancy and hair loss. https://americanpregnancy.org/healthy-pregnancy/pregnancy-health-wellness/hair-loss-during-pregnancy/#
- FDA. (2023). Folate and folic acid on the nutrition and supplement Facts labels. In FDA.gov. https://www.FDA.gov/NutritionFactsLabel
- Office of Dietary Supplements – Biotin. (n.d.). https://ods.od.nih.gov/factsheets/Biotin-HealthProfessional/#h7
- Suchonwanit, P., Thammarucha, S., & Leerunyakul, K. (2019). Minoxidil and its use in hair disorders: a review. Drug design, development and therapy, 13, 2777–2786. https://doi.org/10.2147/DDDT.S214907
- Hoover, E., Alhajj, M., & Flores, J. L. (2023a, July 30). Physiology, hair. StatPearls – NCBI Bookshelf.https://www.ncbi.nlm.nih.gov/books/NBK499948/#
- Bistas, K. G., & Tadi, P. (2023, July 3). Biotin. StatPearls – NCBI Bookshelf. https://www.ncbi.nlm.nih.gov/books/NBK554493/#
- Shin, J., Chung, E., Kim, M., Kim, T., Kim, W., & Huh, C. (2018). Evaluation of long‐term efficacy of finasteride in Korean men with androgenetic alopecia using the basic and specific classification system. Journal of Dermatology, 46(2), 139–143. https://doi.org/10.1111/1346-8138.14719
- Hwang, S. B., Park, H. J., & Lee, B. H. (2022). Hair-Growth-Promoting Effects of the Fish Collagen Peptide in Human Dermal Papilla Cells and C57BL/6 Mice Modulating Wnt/β-Catenin and BMP Signaling Pathways. International journal of molecular sciences, 23(19), 11904. https://doi.org/10.3390/ijms231911904
- An, S. Y., Kim, H. S., Kim, S. Y., Van, S. Y., Kim, H. J., Lee, J. H., Han, S. W., Kwon, I. K., Lee, C. K., Do, S. H., & Hwang, Y. S. (2022). Keratin-mediated hair growth and its underlying biological mechanism. Communications biology, 5(1), 1270. https://doi.org/10.1038/s42003-022-04232-9
- Wang, C., Du, Y., Bi, L., Lin, X., Zhao, M., & Fan, W. (2023). The Efficacy and Safety of Oral and Topical Spironolactone in Androgenetic Alopecia Treatment: A Systematic Review. Clinical, cosmetic and investigational dermatology, 16, 603–612. https://doi.org/10.2147/CCID.S398950
- Almohanna, H. M., Ahmed, A. A., Tsatalis, J. P., & Tosti, A. (2019). The Role of Vitamins and Minerals in Hair Loss: A Review. Dermatology and therapy, 9(1), 51–70. https://doi.org/10.1007/s13555-018-0278-6
- Draelos, Z. D., Jacobson, E. L., Kim, H., Kim, M., & Jacobson, M. K. (2005). A pilot study evaluating the efficacy of topically applied niacin derivatives for treatment of female pattern alopecia. Journal of cosmetic dermatology, 4(4), 258–261. https://doi.org/10.1111/j.1473-2165.2005.00201.x
- Choi, G. S., Sim, W. Y., Kang, H., Huh, C. H., Lee, Y. W., Shantakumar, S., Ho, Y. F., Oh, E. J., Duh, M. S., Cheng, W. Y., Bobbili, P., Thompson-Leduc, P., & Ong, G. (2022). Long-Term Effectiveness and Safety of Dutasteride versus Finasteride in Patients with Male Androgenic Alopecia in South Korea: A Multicentre Chart Review Study. Annals of dermatology, 34(5), 349–359. https://doi.org/10.5021/ad.22.027
- Nutrition, C. F. F. S. a. A. (2024b, February 21). Questions and answers on dietary supplements. U.S. Food And Drug Administration. https://www.fda.gov/food/information-consumers-using-dietary-supplements/questions-and-answers-dietary-supplements#
- Wall, D., Meah, N., Fagan, N., York, K., & Sinclair, R. (2022). Advances in hair growth. Faculty reviews, 11, 1. https://doi.org/10.12703/r/11-1
- .Hair loss: Diagnosis and treatment. (n.d.-b). https://www.aad.org/public/diseases/hair-loss/treatment/diagnosis-treat
- Doolan, B. J., & Sinclair, R. (2019). Retinoids in hair disorders. In CRC Press eBooks (pp. 129–134). https://doi.org/10.1201/9780429456732-22
- Fahham Asghar, Nazia Shamim, Umar Farooque, Haris Sheikh, Ramsha Aqeel Telogen Effluvium: A Review of the Literature PMCID: PMC7320655 PMID: 32607303 Published online 2020 May 27. Doi: 10.7759/cureus.8320 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7320655/
- Karlyle G. Bistas; Prasanna Tadi. Biotin Bookshelf ID: NBK554493PMID: 32119380 https://www.ncbi.nlm.nih.gov/books/NBK554493/#:~:text=Biotin%20is%20a%20safe%20and,due%20to%20increased%20biotin%20metabolism
- Christine A VanBuren, Helen B Everts Vitamin A in Skin and Hair: An Update PMCID: PMC9324272 PMID: 35889909 https://pmc.ncbi.nlm.nih.gov/articles/PMC9324272/
- Muhammad Abdullah; Radia T. Jamil; Fibi N. Attia. Vitamin C (Ascorbic Acid) Last Update: May 1, 2023. https://www.ncbi.nlm.nih.gov/books/NBK499877/
- Luke Maxfield; Sharon F. Daley; Jonathan S. Crane. Vitamin C Deficiency Last Update: November 12, 2023. https://www.ncbi.nlm.nih.gov/books/NBK493187/
- Kriteeka Saini, Venkataram Mysore, Role of vitamin D in hair loss: A short review PMID: 34553483 DOI: 10.1111/jocd.14421 https://pubmed.ncbi.nlm.nih.gov/34553483/
- Joël Pincemail, Smail Meziane, On the Potential Role of the Antioxidant Couple Vitamin E/Selenium Taken by the Oral Route in Skin and Hair Health PMCID: PMC9686906 PMID: 36421456 https://pmc.ncbi.nlm.nih.gov/articles/PMC9686906/
- Leonid Benjamin Trost, Wilma Fowler Bergfeld, Ellen Calogeras The diagnosis and treatment of iron deficiency and its potential relationship to hair loss PMID: 16635664 DOI: 10.1016/j.jaad.2005.11.1104 https://pubmed.ncbi.nlm.nih.gov/16635664/
- Ralph M Trüeb “Let Food be Thy Medicine”: Value of Nutritional Treatment for Hair Loss PMCID: PMC8647708 PMID: 34934293 https://pmc.ncbi.nlm.nih.gov/articles/PMC8647708/
- Carol Wagner, Judy Shary, Myla Ebeling, Amy Wahlquist, Paul Nietert Bioequivalence Pilot Study of Two Multivitamin Formulations in Healthy Adults PMCID: PMC7259245 https://pmc.ncbi.nlm.nih.gov/articles/PMC7259245/
- David L Vollmer, Virginia A West, Edwin D Lephart Enhancing Skin Health: By Oral Administration of Natural Compounds and Minerals with Implications to the Dermal Microbiome PMCID: PMC6213755 PMID: 30301271 https://pmc.ncbi.nlm.nih.gov/articles/PMC6213755/
- Jovan Lalosevic, Mirjana Gajic-Veljic, Jelena Lalosevic Misovic, Milos Nikolic Serum Zinc Concentration in Patients with Alopecia Areata PMCID: PMC10561101 PMID: 37787421 https://pmc.ncbi.nlm.nih.gov/articles/PMC10561101
- Jung-Il Kang, Hoon-Seok Yoon, Sung Min Kim, Jeong Eon Park, Yu Jae Hyun, Ara Ko, Yong-Seok Ahn, Young Sang Koh, Jin Won Hyun, Eun-Sook Yoo, Hee-Kyoung Kang Mackerel-Derived Fermented Fish Oil Promotes Hair Growth by Anagen-Stimulating Pathways PMCID: PMC6164340 PMID: 30223485 https://pmc.ncbi.nlm.nih.gov/articles/PMC6164340/
- Massimo Milani, Francesca Colombo; GFM-O-Trial Investigators Group: Chiara Baraldo (Padova), Mauro Barbareschi (Milano), Paolo Chieco (Ruvo di Puglia), Laura Colonna (Roma), Mandel Victor Desmond (Modena), Maria Cristina Fiorucci (Genova) Efficacy and tolerability of an oral supplement containing amino acids, iron, selenium, and marine hydrolyzed collagen in subjects with hair loss (androgenetic alopecia, AGA or FAGA or telogen effluvium). A prospective, randomized, 3-month, controlled, assessor-blinded study PMID: 37357646 PMCID: PMC10240182 DOI: 10.1111/srt.13381 https://pubmed.ncbi.nlm.nih.gov/37357646/
- Marcel Hrubša, Tomáš Siatka, Iveta Nejmanová, Marie Vopršalová, Lenka Kujovská Krčmová, Kateřina Matoušová, Lenka Javorská, Kateřina Macáková, Laura Mercolini, Fernando Remião, Marek Máťuš, Přemysl Mladěnka Biological Properties of Vitamins of the B-Complex, Part 1: Vitamins B1, B2, B3, and B5 PMCID: PMC8839250 PMID: 35276844 https://pmc.ncbi.nlm.nih.gov/articles/PMC8839250/
- Nuriye Gokce, Neslihan Basgoz, Sercan Kenanoglu, Hilal Akalin, Yusef Ozkul, Mahmut Cerkez Ergoren, Tommaszo Beccari, Matteo Bertelli, Munis Dundar An overview of the genetic aspects of hair loss and its connection with nutrition PMCID: PMC9710406 PMID: 36479473 https://pmc.ncbi.nlm.nih.gov/articles/PMC9710406/
- Emily L Guo, Rajani Katta Diet and hair loss: effects of nutrient deficiency and supplement use PMCID: PMC5315033 PMID: 28243487 https://pmc.ncbi.nlm.nih.gov/articles/PMC5315033/