Whether you’re an athlete aiming to maximize performance, someone battling chronic fatigue, or simply looking for answers on how to increase testosterone, testosterone booster supplements may offer a potential solution. However, the effectiveness of these products can vary significantly depending on the ingredients, dosage, and individual factors such as age, health, and your baseline testosterone levels.
We reviewed over a dozen testosterone boosters for how well they perform, their safety, potential side effects, and overall value. From our initial list, our team of nutrition coaches, personal trainers, and registered dietitians selected six of the best-formulated testosterone boosters to help you reach your goals.
The key is choosing a testosterone supplement with a formulation that makes sense for both your body and goals. As a certified nutrition coach and personal trainer myself, my aim is to guide you in finding the perfect product to meet your needs. Read on to discover how these top picks could be a game-changer in elevating your daily routine.
Editor’s pick: Testosil
If you’re looking for a supplement that approaches testosterone enhancement from multiple angles, look no further than Testosil. Its all-natural formula is specifically designed to help get your groove back. Read on for a deep dive into this top-performing testosterone booster.
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 testosterone booster
- Best for males over 40: Testosil
- Best for men: Transparent Labs Vitality
- Best for working out: Roman Testosterone Support
- Best for erectile dysfunction: TestoFuel
- Best natural: TestoPrime
- Best for muscle growth: Kaged Ferodrox
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| Testosil | Transparent Labs Vitality | Roman Testosterone Support | TestoFuel | TestoPrime | Kaged Ferodrox | |
| Rating | ||||||
| Price per serving | $2.30 | $1.83 | $1.17 | $2.00 | $2.17 | $1.67 |
| Key ingredients | D-aspartic acid, KSM-66 (organic ashwagandha extract), Asian ginseng (Panax ginseng), fenugreek extract | KSM-66 (organic ashwagandha extract), PrimaVie (shilajit extract), LJ100 (Eurycoma longifolia root extract), diindolylmethane, zinc, boron, black pepper extract | Maca root powder (Lepidium meyenii), ashwagandha root extract, zinc | Maca root extract, Asian red Panax ginseng extract, oyster extract, fenugreek seed extract, zinc, boron | D-aspartic acid, fenugreek extract, Panax ginseng, KSM-66 (organic ashwagandha extract), zinc | Zinc, KSM-66 (organic ashwagandha extract), LJ100 eurycoma longifolia root extract, PrimaVie, 3,3′-Diindolylmethane, Bioperine |
| Serving size | 4 capsules | 2 capsules | 4 tablets | 4 capsules | 4 capsules | 2 capsules |
Best testosterone booster for males over 40: Testosil
Key product features
What you should know
Testosil’s formula is designed to target age-related hormonal decline, making it a potential solution for restoring youthful energy and strength.
- One of Testosil’s primary ingredients is KSM-66, a highly concentrated and clinically studied ashwagandha extract known for its ability to reduce stress, improve strength, and potentially enhance overall testosterone levels. (1)
- Priced at $2.30 per serving, Testosil is positioned at a premium price point compared to other testosterone boosters on the market. For better pricing, Testosil’s six bottle bundle drops the cost down to $1.63 per serving.
- Testosil’s formula is well suited for men over 40 who are experiencing symptoms of low testosterone, such as reduced energy, muscle loss, and decreased libido.
Why we like Testosil as best for males over 40
Testosil’s formula features key ingredients, including ashwagandha, d-aspartic acid, fenugreek, and zinc, all of which have been backed by research to support healthy testosterone levels. (1, 2, 3, 4) Additionally, this supplement includes L-arginine to enhance blood flow, Panax ginseng to boost energy and cognitive function, and vitamin D3 to support overall health and muscle function. (5, 6, 7)
The trademarked ingredient AstraGin is also included to improve nutrient absorption, maximizing the supplement’s potential effectiveness. (8)
Testosil’s formula also includes the vitamins B5 and B6, which may help combat fatigue, a common symptom of low testosterone. (9) Additionally, the inclusion of garlic extract isn’t just for warding off vampires; it turns out the compounds in garlic can help boost nitric oxide levels, enhancing blood flow, which increases oxygen and nutrient delivery throughout the body as well as supporting erectile function. (10)
As men age, they experience a natural decline in testosterone levels, making it increasingly challenging to maintain muscle mass and strength. This hormonal decrease can also result in reduced energy, increased body fat, and a decline in libido and sexual performance. Additionally, lower testosterone levels can affect mood, leading to feelings of depression and decreased mental clarity. As males age, there is a sharp decline in testosterone production after 30 and then even more so into the 40s.
Testosterone boosters like Testosil are intended to help counter these effects by naturally stimulating the body’s testosterone production, thereby restoring vitality, enhancing physical performance, and improving overall quality of life. For men over 40 looking to maintain their strength, energy, and well-being, a testosterone booster can be a valuable addition to their health regimen.
For those interested in Testosil, the six-bottle bundle offers the best value. The cost per bottle drops from $69 to $49, and the bundle includes Testosil’s Ultimate Testosterone Guide and two bottles of DIM3X, a diindolylmethane supplement designed to reduce the conversion of testosterone into estrogen. The free guide provides a straightforward approach to optimizing testosterone naturally, offering key insights on how diet and exercise can improve your levels. This comprehensive package ensures users get the most out of their investment in Testosil, supporting their journey to enhanced vitality and well-being.
What customers are saying Say
Testosil is rated 4 out of 5 stars on Amazon, although it currently has fewer than 20 reviews.
Amazon reviewer Dirge provides insight into his experience using Testosil, writing, “I can’t say how big of an effect this had, but I can attest to no adverse reactions. The capsules are relatively large, but also not difficult to swallow.”
Another review from username Zeus360 reads, “I’ve been using Leading Edge Health Testosil for a while now, and I’m really impressed with the results. I feel more energized throughout the day. No more afternoon slumps! Improved Stamina: I’ve seen a difference in my workouts. I can push myself harder for longer. I just feel better overall. More focused, more confident, and ready to tackle the day. Testosil is easy to take, just a few capsules a day, and it hasn’t caused any side effects for me.”
Specs
| Rating | 3.8 |
| Price per serving | $2.30 |
| Key ingredients | D-aspartic acid, KSM-66 (organic ashwagandha extract), L-arginine HCl, Asian ginseng (Panax ginseng), fenugreek extract |
| Serving size | Four capsules |
| Servings per container | 30 |
| Third-party testing | Yes |
Best testosterone booster for men: Transparent Labs Vitality
Key product features
What you should know
Transparent Labs Vitality is a potent testosterone booster designed to increase energy, improve body composition, and enhance overall health. We love that this product is formulated with all-natural ingredients, certified by Informed Choice, and third-party tested for quality and safety, ensuring you get a reliable, clean, and high-value supplement to support your vitality goals.
- The 600 milligram dose of KSM‐66 Ashwgandha® in Transparent Labs Vitality has been clinically studied and shown to increase serum testosterone levels by up to 17%. (11)
- At $1.83 per serving, Vitality is competitively priced within the premium testosterone supplement market, offering exceptional value with its Informed Choice certification and third-party testing.
- This supplement is ideal for men seeking to naturally enhance their testosterone levels with an artificial ingredient-free, gluten-free, and vegan formula.
Why we like Transparent Labs Vitality as best for men
Transparent Labs Vitality stands out as an effective testosterone booster for men, and there are several compelling reasons why we consider it the best choice.
First off, Vitality is formulated with a potent combination of six active ingredients, including standardized ashwagandha (KSM‐66 Ashwgandha®), shilajit, quercetin dihydrate, diindolylmethane (DIM), tongkat ali (also known as longjack), and black pepper extract, along with the essential minerals boron and zinc. This robust ingredients list targets multiple aspects of testosterone enhancement, making it a well-rounded solution for men looking to optimize their testosterone levels.
For instance, both boron and zinc are trace minerals that play a crucial role in testosterone production within the body. (12, 4) If you’re not consuming enough of these minerals through your diet alone and/or have clinically deficient levels with either, regular supplementation may be a game-changer for increasing your serum testosterone levels.
Breaking down the active ingredients, the 600 milligram (mg) dose of ashwagandha in Transparent Labs Vitality has been clinically studied and shown to increase serum testosterone levels by up to 17% in some research. (11)
Additionally, research reveals that taking a 250 mg dose of Shilajit—just like the amount in Vitality—twice daily for 90 days helped lead to a significant boost in both total and free testosterone levels. (13) This ingredient in particular could support healthy testosterone levels according to the research.
The four remaining active ingredients work behind the scenes to potentially support healthy testosterone levels. Quercetin dihydrate is an antioxidant that’s been shown to help protect Leydig cells, which are the testosterone producing cells of testicles, from oxidative and toxin-induced damage. (14) DIM helps regulate estrogen metabolism in one study of breast cancer patients receiving tamoxifen.
LJ100 helps improve the ratio of testosterone to cortisol and could help improve erectile function, and Bioperine (black pepper extract) helps optimize the bioavailability of these other nutrients through absorption processes. (15, 16, 17)
It’s great to see a supplement that contains clinically effective, standardized doses, ensuring you receive the right amount of each ingredient to achieve the desired effects. Many other testosterone boosters on the market fall short in this regard, using proprietary blends that hide the actual doses of ingredients. Transparent Labs, however, provides full transparency, so you know exactly what and how much you’re putting into your body.
Vitality is also third-party tested and certified by Informed Choice, a globally recognized certification program that helps minimize the risk of banned substance contamination. This certification provides an added layer of assurance, ensuring that the product meets strict quality and safety standards, making it a reliable choice for both athletes and health-conscious consumers.
Overall, this supplement features high-quality ingredients and is well-dosed, with a convenient two-capsule serving size that fits easily into your daily routine. Transparent Labs recommends taking Vitality with food. However, one thing we would like to see is a dosing recommendation for individuals who plan on using this supplement two times per day. Even a simple recommendation, such as taking one serving with breakfast and the second with dinner, could significantly enhance the supplement’s usability and effectiveness.
What customers are saying
Transparent Labs Vitality is a fairly new product and therefore there aren’t many reviews on third-party websites. Of the three reviews found on Amazon, each consumer rated the product 5 stars.
“I am 43 years old and have been looking for a product that will bring my energy level back. I felt an immediate impact the day after the first dose. Three weeks later I still feel that I have more energy throughout the day. Price is high on this product, but it is the best product I have used.”
Travis G., verified Amazon customer
Specs
| Rating | 4.4 |
| Price per serving | $1.83 |
| Key ingredients | KSM-66 (organic ashwagandha extract), PrimaVie (shilajit extract), LJ100 (Eurycoma longifolia root extract), diindolylmethane |
| Serving size | Two capsules |
| Servings per container | 30 servings |
| Third-party testing | Yes |
Best testosterone booster for working out: Roman Testosterone Support
Key product features
What you should know
Roman Testosterone Support is a supplement designed to support healthy testosterone levels with a blend of ingredients including vitamin D3, magnesium, zinc, maca root, and ashwagandha. It aims to enhance energy, mood, and overall vitality in men.
- Roman Testosterone Support includes well-researched ingredients like ashwagandha, maca, and zinc, which have shown potential in supporting healthy testosterone levels and overall male vitality. The inclusion of magnesium is also noteworthy, as it can improve sleep quality and reduce stress—key factors that may indirectly maintain healthy testosterone levels as well. (18)
- Priced at $1.17 per serving, Roman Testosterone Support is the most affordable supplement on our list.
- These pills are best suited for men looking to naturally support their testosterone levels, particularly those experiencing mild symptoms of low testosterone such as reduced energy, mood fluctuations, or decreased muscle mass.
Why we like Roman Testosterone Support as best for working out
Roman Testosterone Support stands out as a solid option for supporting healthy testosterone levels, largely due to its doctor-formulated ingredients list of vitamins, minerals, and herbal extracts.
A standout feature of this supplement is the inclusion of maca root, an adaptogenic herb celebrated for its ability to boost energy, stamina, and overall vitality. Maca has a long history of use in eastern medicine, particularly for enhancing libido and improving mood. However, recent studies have also found that maca root could have neuroprotective effects, cognitive benefits, and antioxidant and anti-inflammatory properties. (19)
These potential benefits make it a great addition to a testosterone support formula, addressing multiple facets of male health beyond just hormone levels.
The supplement also features well-researched components like vitamin D3, magnesium, and zinc, all known for their efficacy in supporting testosterone levels and general well-being. Vitamin D3, for instance, plays a crucial role in maintaining bone health and immune function, while magnesium is essential for muscle function, quality sleep, and stress reduction. (7, 20) Zinc is another essential mineral that supports immune function and has been linked to maintaining healthy testosterone levels, when optimizing serum zinc levels from deficiency. (4) This blend of ingredients ensures that users are receiving a comprehensive approach to testosterone support, targeting various aspects of health that contribute to optimal hormone balance.
Ashwagandha is also included in Roman’s formula, in a clinically effective dose of 600 mg. (11)
While copper is included in the formula at 222% of the daily value, its impact on testosterone production isn’t well established and is not a mineral that people are commonly deficient in. However, high levels of zinc can interfere with the absorption of copper, which may be why it’s included at such a high amount. (21)
Furthermore, the convenience of Roman Testosterone Support cannot be understated. The supplement is easily accessible online, with monthly and quarterly subscription options available for regular delivery. This ensures that users can maintain consistent support for their testosterone levels without the hassle of reordering each month. The combination of a well-formulated product and ease of use makes Roman Testosterone Support a top choice for those looking to naturally enhance their testosterone levels and overall vitality.
One thing our testing team noted was that the pills are slightly larger than average. To make them easier to swallow, Roman recommends splitting the daily dose of four pills into two servings, taking two tablets with lunch and two with dinner.
At $1.17 per serving, Roman Testosterone Support is incredibly affordable compared to other options on the market.
What customers are saying
Roman Testosterone Support is rated 4 out of 5 stars on Amazon. In general, consumers appear to be happy with their results, commenting on improved energy levels and increased libido. However, some users have experienced some stomach issues and a nauseated feeling after using this product.
Amazon customer ReyBanz writes, “So I’ve been taking this supplement for over 3 years and I know for a fact it works. As soon as I slow down taking it or run out, I notice the difference. When I’m consistently taking this supplement I feel stronger mentally and physically. Also my ‘performance’ is top tier.”
There are also a handful of reviews commenting on the above average size of the pills. A review from Amazon user Eric reads, “Seems to give some benefit, but the 3 grams of active ingredients are S P R E A D out over 4 giant tablets that can be rough on the stomach.”
Specs
| Rating | 4.2 |
| Price per serving | $1.17 |
| Key ingredients | Maca root powder (Lepidium meyenii), ashwagandha root extract, zinc, magnesium, vitamin D3, D- |
| Serving size | Four pills |
| Servings per container | 30 servings |
| Third-party testing | No |
Best testosterone booster for erectile dysfunction: TestoFuel
Key product features
What you should know
TestoFuel is a natural testosterone booster that may help improve libido and sexual performance in men experiencing erectile dysfunction.
- TestoFuel contains a blend of natural ingredients including D-aspartic acid, fenugreek, and oyster extract, which have been shown to support testosterone production.
- At $2.00 per serving, TestoFuel is priced in the mid-to-high range compared to other testosterone boosters on our list.
- TestoFuel is designed for men who are looking to naturally boost their testosterone levels to improve sexual performance and libido. It may be particularly beneficial for older men or those experiencing symptoms of low testosterone, such as fatigue and reduced sexual performance.
Why we like TestoFuel as best for erectile dysfunction
TestoFuel is our pick as the best testosterone booster for individuals experiencing erectile dysfunction. This is due to its carefully selected ingredients, particularly D-aspartic acid and oyster extract, which can play a key role in enhancing sexual health.
D-aspartic acid is the main ingredient in TestoFuel, recognized for its role in regulating testosterone production. As an amino acid, it regulates the synthesis and release of luteinizing hormone (LH) and gonadotropin-releasing hormone (GnRH), which in turn signal the testes to produce more testosterone. (2)
Elevated testosterone levels can work to improve libido and sexual performance, addressing common issues associated with erectile dysfunction. However, while D-aspartic acid supplementation has shown promise in boosting testosterone levels in animal studies, human research has produced mixed results. (22) To establish its effectiveness conclusively, more rigorously designed clinical trials with larger sample sizes and extended durations are needed.
Oyster extract is another noteworthy ingredient in TestoFuel. Oysters are rich in zinc, a mineral essential for testosterone production and reproductive health. (23) Zinc deficiency is linked to lower testosterone levels and sexual dysfunction, so incorporating oyster extract may help ensure that your body has the necessary nutrients to maintain optimal hormone levels. (4)
Additionally, oyster extract contains a variety of amino acids and other compounds that may support overall sexual health and performance. (23) Though blindly adding zinc or other nutrients to the diet doesn’t necessarily ensure a boost in hormone levels.
Together, these ingredients make TestoFuel a potential option for those struggling with erectile dysfunction. D-aspartic acid is purported to work to regulate testosterone production, while oyster extract provides essential nutrients that support hormonal balance and sexual health.
In addition, the Asian ginseng included in this product may help reduce stress and fatigue, which may have an indirect supporting action for male hormonal health. (6) Meanwhile, fenugreek has been shown in some studies to boost testosterone levels by inhibiting enzymes that convert testosterone to estrogen, thereby increasing the availability of free testosterone in the body. (3)
By addressing both hormonal production and nutrient support, TestoFuel offers a comprehensive approach to improving erectile function and enhancing overall well-being.If you’re dealing with erectile dysfunction, you may also want to explore our article on how exercise could work better than Viagra. Lifestyle factors like diet and exercise play a crucial role in tackling ED and improving your overall well-being. If you’ve considered over-the-counter options, visit our full guide on the best OTC ED treatments for more information.
“Keep in mind erectile dysfunction may be a multifaceted issue. Overweight and obesity could affect vascular health, along with diabetes, hypertension and other comorbidities. Talking with your own health care practitioner to determine any underlying health concerns is important.”
Chris Mohr, PhD, RD, Fortune Recommends Advisor
What customers are saying
TestoFuel boasts a solid 4.1 out of 5 star rating on Amazon, backed by over 300 reviews from users worldwide. Many of the reviews mention improvements in mood, increased appetite, and noticeable changes in body composition.
Amazon user LaVieEnRose comments, “I’ve used a few different test boosters that had little to no results and finally, after doing some research, decided to try a higher priced one. It’s week three and so far: increase in libido and much stronger erections – yes; increase in strength – yes, nothing crazy, but definitely yes; muscles feel and look a bit fuller – yes, but barely. The only reason for 4 stars is having to take 4 pills throughout the day instead of just one or two. So far – I recommend.”
However, not everyone experienced the same benefits.
An Amazon review from Daniel in the UK reads, “I’ve been using these for close to a month now and I can honestly say I haven’t really noticed much difference. It’s difficult with things like this because they’re not exactly night or day pills – they’re not steroids. The effect that they have is likely to be very subtle so it’s difficult to notice any changes. That doesn’t mean they don’t do anything, it’s just hard to notice.”
Specs
| Rating | 3.8 |
| Price per serving | $2.00 |
| Key ingredients | D-aspartic acid, maca root extract, Asian red Panax ginseng extract, Oyster extract, fenugreek seed extract, zinc, boron, magnesium, vitamin K2, vitamin D3 |
| Serving size | Four capsules |
| Servings per container | 30 servings |
| Third-party testing | No |
Best natural testosterone booster: TestoPrime
Key product features
What you should know
TestoPrime is the most comprehensive testosterone booster on our list, containing eight active ingredients and a handful of vitamins and minerals to help naturally boost your testosterone.
- TestoPrime contains a blend of natural ingredients, including D-aspartic acid, fenugreek, ashwagandha, and Panax ginseng.
- Priced at $2.17 per serving, this product is more expensive than average. For better value, you can take advantage of their buy three bottles and get two free offer, which cuts the price down to $1.30 per serving.
- TestoPrime is intended for men looking to naturally support their testosterone levels to enhance their overall health and wellness.
Why we like TestoPrime as best natural
TestoPrime is one of the best natural testosterone boosters due to its well-rounded and comprehensive formula, which incorporates a variety of research-backed ingredients. Among these, fenugreek extract, Panax ginseng, and ashwagandha play key roles in helping to enhance testosterone levels and improve your overall well-being.
Fenugreek has been studied for its ability to support healthy testosterone levels, improve body composition, and enhance athletic performance. The secret behind these benefits lies in its saponins—natural plant compounds that help prevent the breakdown of testosterone. (3) By maintaining higher levels of this vital hormone, fenugreek can help maximize optimal muscle growth and faster recovery after workouts.
Plus, fenugreek has also been shown to help your muscles absorb more creatine, especially for people supplementing creatine, giving you an extra muscle energy and power resource for peak performance in sports and exercise. (3) TestoPrime includes 200 mg of a 4:1 fenugreek extract—equivalent to 800 mg—a dose notably higher than the 300 mg typically used in most scientific studies. This larger amount may enhance the effectiveness of this ingredient, potentially providing more significant benefits for boosting testosterone and improving overall performance.
Another ingredient, Panax ginseng, is a well-known adaptogen included in TestoPrime for its potential to enhance energy levels, working to reduce fatigue and improve mental clarity. (6) Its adaptogenic properties may help the body manage stress, which can be especially beneficial since high stress levels can negatively impact testosterone production. (24)
Ashwagandha is another cornerstone of TestoPrime’s formula, known for its stress-reducing and mood-enhancing effects. The potential health benefits of ashwagandha include lowering cortisol levels, enhancing sleep quality, and alleviating anxiety. (25) Similar to Panax ginseng, by reducing stress and improving overall mood, ashwagandha can help foster a more favorable physical state for healthy testosterone levels. Of note, the form of ashwagandha used in this product is the research supported and standardized KSM-66.
TestoPrime’s formula also includes 2000 mg of D-aspartic acid, which can help the body optimize testosterone levels. (2)
Together, these ingredients make TestoPrime a robust and potentially effective natural testosterone booster. Fenugreek supports hormone balance, Panax ginseng enhances energy and performance, and ashwagandha helps manage stress and improve mood. This combination addresses multiple facets of testosterone health, offering a holistic approach to boosting overall vitality and well-being.
What customers are saying
TestoPrime is rated 3.7 out of 5 stars on third-party review site Trustpilot. The majority of 5 star reviews comment on how the product helped individuals renew some youthful vigor, while the less positive reviews centered around poor customer service and even receiving the wrong supplement.
Verified buyer Garret C. left a Trustpilot review saying, “I have been taking this product regularly for a year now. I am 35 years old and feel like I am 25 again. I’m not a gym rat or a crazy fitness guy, I work out maybe once or twice a week and don’t follow any kind of diet. My aches and pains are less, my metabolism is elevated. I just overall feel younger now than I have in quite some time.”
“This works! I can totally tell a difference right away, after the 1st couple times taking it. Followed the directions, taking 4 tablets in the morning and I could notice more power and extra energy in my gym reps. In addition I noticed I felt more confident and happier throughout my day, as it puts me in a really good mood. Also, when getting intimate w/ my GF, I noticed it helped me perform even better and more consistent!”
Danny, verified Trustpilot reviewer
However, not all reviews are glowing.
Michael C. describes his experience saying, “As others have stated I got sent the wrong package, 5 bottles PhenQ instead of Testo Prime. Sent pics as requested then took a week to get settled, now I have to pay to ship back overseas along with having to wait til they get it back before they shipped my product I bought weeks ago. I paid almost $200 which I’ve asked for a full refund because this is unacceptable business practice.”
Specs
| Rating | 4.0 |
| Price per serving | $2.17 |
| Key ingredients | D-aspartic acid, fenugreek extract, Panax ginseng, KSM-66 (organic ashwagandha extract), zinc |
| Serving size | Four capsules |
| Servings per container | 30 servings |
| Third-party testing | No |
Best testosterone booster for muscle growth: Kaged Ferodrox
Key product features
What you should know
Kaged Ferodrox is marketed as a testosterone booster designed to support muscle building, and is a good choice for those looking to make gains in the gym.
- The six main ingredients in the Kaged Ferodrox formula work to help promote increases in lean muscle mass, maintain healthy testosterone levels, and enhance workout performance.
- Priced at $1.67 per serving, Kaged is the second most affordable testosterone booster on our list, while still providing effective doses of tongkat ali and shilajit.
- Kaged Ferodrox is best for individuals looking to support testosterone production and improve muscle mass.
Why we like Kaged Ferodrox as best for muscle growth
For individuals seeking to enhance muscle growth through the use of a testosterone booster, Kaged Ferodrox might be right for you. This supplement is formulated support testosterone production, which may lead to improvements in overall muscle development and strength.
Kaged Ferodrox is made with six primary ingredients: zinc, KSM-66, LJ100 Eurycoma longifolia root extract (tongkat ali), PrimaVie purified shilajit, 3,3′-Diindolylmethane, and BioPerine.
Early data suggests elevated testosterone levels can enhance muscle protein synthesis, resulting in more substantial muscle gains when combined with regular resistance training and a high-quality diet. (26) Remember that without the paired stimulus from lifting weights and sufficient protein and calorie intake, even optimal testosterone levels won’t lead to muscle development.
A study from the University of Santa Catarina State revealed that combining six months of resistance training with a 200 mg dose of tongkat ali, one of the key ingredients in Kaged Ferodrox, led to a to a notable 50% increase in testosterone in androgen deficient men in their late 40s. (15) It’s crucial to note that the participants in this study initially had low testosterone. As a result, if you already have healthy testosterone levels, you might not experience the same benefits from using tongkat ali.
Another study assessed the impact of eight weeks of shilajit supplementation on muscle strength in recreationally active men. The results showed that a 500 mg dose (which is higher than what’s included in Kaged Ferodrox) promoted the retention of maximal muscular strength following fatigue when compared to the placebo. (27) These findings suggest that supplementing with shilajit may help you preserve strength during extended workouts and greater fatigue. This may enable you to push harder toward the end of your sessions, potentially maximizing muscle growth and improving overall performance. Additionally, research shows that KSM-66 ashwaganda supplementation may help reduce stress and anxiety levels and the stress hormone cortisol. (25)
Between the preservation of strength and decreased recovery time due to the possible increased testosterone, this can help decrease time between workouts and optimal recovery.
At $1.67 per serving, Kaged is an affordable supplement compared to other testosterone boosters on the market.
What customers are saying
Kaged Ferodrox has over 400 reviews on Amazon with an average rating of 4.3 out of 5 stars. Reviewers note positive side effects, including increased energy when taking the product.
“After taking this product for a month, the biggest aspects Ferodrox has noticeably affected in my day to day life are increased quality of sleep and overall energy and focus,” says verified reviewer SubZero
“Hard to tell how this really effects T levels but it does have some well-known ingredients. That said, I have been feeling great and I have more energy than ever before.”
Brandon, Amazon
However, a few reviewers have noted that their product does not have all 60 capsules. Amazon reviewer Mike L. says, “On my second bottle and haven’t noticed much. Easy two per day formula which is nice. Definitely shorted on pills on each bottle—I’ve been religiously taking two per day and have counted 59 capsules and not 60 as advertised.”
Specs
| Rating | 3.9 |
| Price per serving | $1.67 |
| Key ingredients | Zinc, KSM-66 (organic ashwagandha extract), LJ100 eurycoma longifolia root extract, PrimaVie, 3,3′-Diindolylmethane, Bioperine |
| Serving size | Two capsules |
| Servings per container | 30 servings |
| Third-party testing | No |
How we test supplements
If you’re looking to increase strength, build muscle, improve energy levels, and enhance overall vitality, you might want to consider testosterone booster supplements. We’re committed to providing testosterone booster reviews you can trust. That means testing products we recommend, providing you with genuine and impartial feedback. Learn more about our supplements testing methodology for more information on each factor. From ingredient purity to efficacy to taste and more, here’s how we evaluated the testosterone boosters in this piece.
Efficacy—40%
Consumers turn to testosterone booster supplements to enhance their health and achieve performance goals. That’s why we rigorously tested each product on our list to determine if they delivered on their promised benefits. Efficacy means not only that the product fulfills its claims but also that these claims are backed by solid scientific evidence.
Here’s what we look for:
- Clinical evidence
- Calories per serving
- Dose efficacy
- Synergistic effects
- Proprietary blends
Safety and side effects—35%
Potential health risks and adverse side effects are crucial factors to consider when choosing a testosterone booster supplement. We ensure the safety of the products we recommend through comprehensive testing and research, allowing you to feel confident in the safety of a product you decide to purchase.
We evaluate:
- Reported side effects
- Third-party testing
- Manufacturer accreditation
- Artificial ingredients
Value—20%
When it comes to supplements, value encompasses more than just price—it includes the quality and efficacy of the product as well. During our testing, we conduct a thorough cost analysis to determine the true worth of a testosterone booster relative to its price, highlighting products that offer a solid return on investment.
Our factors in this rating include:
- Price per serving
- Dose per serving
Customer experience—5%
A customer’s experience with a supplement company directly impacts satisfaction, loyalty, and the likelihood of repeat purchases. We include it in our testing process because the consumer experience guides purchasing decisions.
Our factors in this rating include:
- Ease of purchase
- Shipping and returns
- Customer support
What is testosterone?
Testosterone is a sex hormone that plays a key role in the development of male sex characteristics. It’s also the driving force behind the numerous changes males undergo during puberty, such as deepening of the voice, increasing muscle mass, and the growth of body and facial hair. (22)
While both men and women require adequate testosterone levels for overall health and well-being, men typically produce higher levels. These elevated levels contribute to physical strength, energy, recovery, and vitality, making testosterone a key player in optimal male health. (23) Think of testosterone as the oil that keeps the engine running as efficiently as possible—it’s essential for your body’s peak performance, influencing everything from physical development to mood and energy.
“This said, it doesn’t necessarily mean more is ‘better’ and there is a balance, but maintaining optimal levels as males age is important for well being and vitality,” adds Mohr. “This means that first, if there’s a concern (low energy, low libido, erectile dysfunction, depression and more), talking to your own health care provider and getting blood work is the first step. Supplements may support healthy levels, but are never a replacement for qualified medical advice.”
Testosterone levels naturally decline with age. (24) Much like a star athlete nearing retirement, aging men may notice they no longer have the energy or drive to perform like they used to. This decline can impact mood, energy levels, and sex drive, potentially leading to fatigue, depression, weight gain, decreased muscle mass and strength, and reduced libido. (25)
In such cases, a well-formulated testosterone booster supplement may help restore balance. We recommend consulting your primary healthcare provider to assess whether a testosterone supplement or more advanced options, like testosterone replacement therapy (TRT), might be right for you.
How do I increase testosterone levels?
Testosterone levels naturally decline with age. (28) Much like a star athlete nearing retirement, aging men may notice they no longer have the energy or drive to perform like they used to. This decline can impact mood, energy levels, and sex drive, potentially leading to fatigue, depression, weight gain, decreased muscle mass and strength, and reduced libido. (29)
If you’re wondering how to boost testosterone, a well-formulated testosterone booster supplement may help restore balance. You also may be able to increase testosterone naturally through diet and exercise, or via a combination of supplements and diet and exercise. We recommend consulting your primary healthcare provider to assess whether a testosterone supplement or more advanced options, like testosterone replacement therapy (TRT), might be right for you.
How to increase testosterone naturally
If you aren’t interested in a testosterone boosting supplement, or you are looking for other ways to increase testosterone, there are many options you can try. Ways to increase testosterone naturally include regular exercise, especially strength training and high-intensity interval training (HIIT). (30) Additionally, maintaining a diet rich in healthy fats and essential nutrients and reduce carb intake, like the Mediterranean diet, has been shown to help increase testosterone levels. While there is no way to increase testosterone levels quickly, consistent, healthy changes to your diet and exercise routine can help. Along with a diet rich in vitamins and minerals, ensuring you get high-quality sleep can support optimal testosterone production. (31, 32, 33) If you’re aiming to boost your testosterone naturally, don’t overlook the importance of a well-balanced diet, regular exercise, high-quality sleep, and decreasing stress wherever possible. These foundational lifestyle factors generally have a greater impact on testosterone levels than relying solely on a testosterone booster supplement. By prioritizing these areas of your life, you can achieve more meaningful and lasting results. (34, 35, 36)
What do testosterone boosters do?
Testosterone boosters are supplements designed to help naturally elevate testosterone levels in the body. They may achieve this in several ways, typically by stimulating testosterone production, reducing competing hormones like estrogen that can interfere with testosterone, or a combination of both approaches.
When dosed correctly, certain herbal ingredients commonly found in testosterone boosters, such as Panax ginseng, Withania somnifera (ashwagandha), Eurycoma longifolia (tongkat ali), shilajit, and fenugreek, may help to support and optimize the body’s natural testosterone production. (26, 4)
Other testosterone boosters focus on maintaining hormonal balance to achieve healthy testosterone levels. For instance, ingredients like zinc and vitamin D are crucial for testosterone production and function. (27) These types of testosterone boosters act in a similar manner to the best multivitamins, ensuring your body has what it needs to support peak testosterone production. Nutrients like these seem to offer benefits when correcting a deficiency, rather than adding to levels already within normal limits and expecting different results.
Additionally, certain products work to lower estrogen or other hormones that can negatively impact testosterone. Ingredients like diindolylmethane (DIM) may help balance hormone levels, potentially enhancing the effectiveness of testosterone in the body. (28)
It’s essential to recognize that testosterone boosters are nowhere near as potent as anabolic steroids or testosterone replacement therapy (TRT) and usually provide only a modest increase in testosterone levels, if any. (29)
If you’re aiming to boost your testosterone naturally, don’t overlook the importance of a well-balanced diet, regular exercise, high-quality sleep, and decreasing stress wherever possible. These foundational lifestyle factors generally have a greater impact on testosterone levels than relying solely on a testosterone booster supplement. By prioritizing these areas of your life, you can achieve more meaningful and lasting results. (30, 31, 32)
Benefits of testosterone boosters
When dosed correctly, certain herbal ingredients commonly found in testosterone boosters, such as Panax ginseng, Withania somnifera (ashwagandha), Eurycoma longifolia (tongkat ali), shilajit, and fenugreek, may help to support and optimize the body’s natural testosterone production. (37, 13)
Other testosterone boosters focus on maintaining hormonal balance to achieve healthy testosterone levels. For instance, ingredients like zinc and vitamin D are crucial for testosterone production and function. (38) These types of testosterone boosters act in a similar manner to the best multivitamins, ensuring your body has what it needs to support peak testosterone production. Nutrients like these seem to offer benefits when correcting a deficiency, rather than adding to levels already within normal limits and expecting different results.
Additionally, certain products work to lower estrogen or other hormones that can negatively impact testosterone. Ingredients like diindolylmethane (DIM) may help balance hormone levels, potentially enhancing the effectiveness of testosterone in the body. (16)It’s essential to recognize that testosterone boosters are nowhere near as potent as anabolic steroids or testosterone replacement therapy (TRT) and usually provide only a modest increase in testosterone levels, if any. (39)
Potential side effects of testosterone boosters
Testosterone booster supplements are generally considered safe when obtained from trusted sources and used according to the supplier’s recommendations. However, they can still pose some potential health risks, depending on the ingredients, quality control measures, and your individual health status. Long-term use of certain testosterone boosters may potentially impact liver function, which is why some products are advised to be cycled on and off. (33)
Although uncommon, other reported side effects include blood clots, hair loss, acne, and male gynecomastia (breast enlargement). (34, 35) If you experience any adverse side effects, it’s important to stop using the product and consult with your primary healthcare provider. Monitoring your health and seeking professional advice ensures you use testosterone boosters safely and effectively.
When to consider a testosterone booster
An annual physical and regular blood work, including a hormone panel, is an excellent way to monitor your testosterone. Additionally, for those who prefer the convenience of home testing, check out our list of the best at-home testosterone tests for accurate and easy monitoring.
For reference, healthy testosterone levels typically range from 300 to 1,000 nanograms per deciliter (ng/dL). (36) However, we know that testosterone levels decline with age, on average falling around one percent per year after the age of 30. (37) For a more detailed analysis, a study examining data from the National Health and Nutrition Examination Surveys between 2011 and 2016 found that younger men should have higher levels than older men. (38)
- 20-24 years old: 409-558 ng/dL
- 25-29 years old: 413-575 ng/dL
- 30-34 years old: 359-498 ng/dL
- 35-39 years old: 352-478 ng/dL
- 40-44 years old: 350-473 ng/dL
These age-related cutoffs for low testosterone levels are 409, 413, 359, 352, and 350 ng/dL, respectively. If your blood tests show levels below these ranges and you’re looking to boost your testosterone naturally, after speaking with a health care practitioner, you might consider a testosterone booster supplement to support other lifestyle efforts.
In addition to being diagnosed with low testosterone, you should also be aware of common symptoms associated with low testosterone levels. These can include fatigue, decreased sex drive, depression, low energy, reduced muscle mass, and weight gain. (25) If you experience any of these symptoms, it might be worth discussing testosterone booster supplements with your healthcare provider.
How to choose the best testosterone booster for you
When choosing a testosterone booster, it’s important to consider what your primary drivers are for seeking out this supplement. Consider ingredients, and look for products that contain those that are well-researched to support testosterone production, like zinc and vitamin D. (38) You should also research the company you are purchasing from. For example, we like that Roman’s Testosterone Support is doctor-formulated. You should also work with your own physician to find a formula that works for you.
When to see a doctor about testosterone levels
If you’re noticing persistent symptoms that might be linked to low testosterone levels, it’s wise to consult a doctor. Issues like constant fatigue, decreased libido, mood swings, reduced muscle mass, low energy levels, and unexplained weight gain can all signal low testosterone. (25) For an official diagnosis, your doctor can order a hormone panel, which is a blood test that evaluates your testosterone levels and other sex hormones.
It’s also a good practice for men over 30 to get their testosterone levels checked annually. Establishing a baseline provides a helpful point of reference as you age, allowing for easier detection of any significant changes in your hormone levels. Regular monitoring can be a proactive step in maintaining your overall health and well-being.
FAQs
What’s the best testosterone-booster that really works?
When it comes to the best testosterone-boosting supplements available, a few options stand out for their ingredient lists, dosages, and potential effectiveness, and these are the ones we chose for our list.
While the best choice may vary depending on your specific goals, we believe that Transparent Labs Vitality is the best overall pick. This product tackles testosterone boosting from multiple angles, using clinically studied ingredients like ashwagandha, shilajit, and longjack (tongkat ali) to enhance testosterone production. Additionally, it is free from artificial ingredients, Informed Choice certified, and tested by third-party labs to ensure its general safety and effectiveness.
Are testosterone boosters worth it?
If you’re already on top of lifestyle factors like a balanced diet, regular exercise, and quality sleep, incorporating a testosterone booster may take your vitality to the next level. Ingredients like ashwagandha, longjack, and fenugreek have shown potential in boosting testosterone levels in clinical studies. (26)
However, the effectiveness of testosterone booster supplements can vary widely, and not all products are created equal in terms of safety and results. To make an informed choice, we recommend exploring the options on our carefully curated list and consulting with a healthcare professional to find the best fit for your needs.
What form of testosterone is most effective?
The most effective form of testosterone is known as free testosterone, which exists in the body in its physiologically active form, unbound by proteins. Free testosterone is calculated by measuring total testosterone and the amount of sex hormone-binding globulin (SHBG) in the blood. Understanding these levels can provide a clearer picture of hormonal balance and potential areas for improvement in overall health.
What is the best thing to take to boost testosterone levels?
Since anabolic steroids are illegal and can come with significant risks and potential side effects, including liver damage, cardiovascular issues, and hormonal imbalances, other options have been proposed. It’s generally recommended to explore safer, natural alternatives such as lifestyle changes and dietary supplements like testosterone boosters, or testosterone replacement therapy if recommended by your doctor.
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.
Our experts
Robert Wildman, Ph.D., RD, LD, CISSN, FISSN
Dr. Robert Wildman (“Dr. Rob”) is a globally renowned exercise, fitness, and nutrition expert who speaks around the world on exercise and sport nutrition, and continues to work with professional and elite athletes to achieve their highest level of performance as well as health and fitness. Rob received his Ph.D. from The Ohio State University, earned his MS from Florida State University, and earned his BS from the University of Pittsburgh. He is also a registered and licensed dietitian.
Victoria Burgess, Ph.D., CSCS, CISSN
Victoria Burgess earned her Ph.D. in Health and Human Performance from Concordia University Chicago and holds her NSCA CSCS and Certified Sports Nutritionist (CISSN). She is an adjunct professor in the Human Performance and Nutrition department at Concordia University Chicago & Parker University, where she teaches undergraduate, graduate, and doctoral-level courses.
Jessica Coulon
Jessica is a contributing editor and writer for Fortune Recommends who specializes in fitness, health, nutrition, and science content. Previously, she was an editor for Popular Mechanics and Bicycling, where she covered pro cycling news, wrote how-to guides, and tested all the latest and greatest bike gear. She was also a regular shoe tester and contributor for Runner’s World. You can often find her skiing or riding her mountain bike, and racing with the F1RE female enduro team.
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