If you’ve been feeling flat, cannot seem to build muscle, have difficulty maintaining your level of fitness, or your libido has crashed through the floor, you may have low testosterone.

Fortunately, there are more options than ever available to help raise testosterone levels, but which ones are the most effective?

Here, we will discuss the best testosterone boosters on the market today. Our favorite overall is TestoPrime, with its evidence-based ingredients delivering a wide range of benefits to your hormonal health.

Testosterone Boosters: Quick Overview

  1. TestoPrime - Most recommended testosterone booster
  2. D-Bal Max - Ideal for muscle growth
  3. Testo-Max - Suitable for fertility
  4. Prime Male - All-round hormonal support
  5. Testogen - Testosterone booster for male health and wellness
  6. Testosil - Suitable for active men
  7. XWERKS - Formulated for older men
  8. TestoFuel - Ideal for boosting libido
  9. Provacyl - Ideal for enhancing mental energy
  10. Testodren - Single ingredient testosterone booster
  11. Testo Lab Pro - Suitable for fast results


The best testosterone boosters address hormone production and regulation at various steps with a well-rounded spread of ingredients. These are present in sufficient doses and have human trials demonstrating their effectiveness. Overall, TestoPrime takes the top position, with D-Bal Max coming in second.

1. TestoPrime - Most Recommended Testosterone Booster

Eastern Daily Press:


  • Natural ingredients working on multiple steps of testosterone production
  • Antioxidants with muscle-supporting properties
  • No need to worry about cycling
  • Helps burn unwanted fat and build lean muscle
  • Lifetime money-back guarantee



  • Exact dosages of each ingredient are not listed



TestoPrime is a trusted testosterone booster brand known for its effective formula. It contains 12 potent ingredients that have been scientifically studied and shown to support healthy testosterone levels.


Benefits of TestoPrime

TestoPrime is the best testosterone booster overall, especially if you prefer all-natural support with several mechanisms of action.


For example, one of its ingredients is Panax ginseng. Studies show that this herbal remedy can significantly increase total testosterone while somewhat reducing cortisol, the main stress hormone. Better yet, it can boost the counts of mitochondria in your cells, which are responsible for producing over 90% of your cellular energy [1].


Vitamin D is another ingredient in TestoPrime that may boost testosterone levels. A long-term study on healthy, overweight men found a significant rise in testosterone after one year of taking a higher dose of vitamin D [2].


Who Should Avoid TestoPrime?

Avoid TestoPrime if you have pre-existing liver or kidney problems. Individuals with hormonal conditions, such as prostate issues or breast cancer, should also avoid it or use it with caution, as it may influence hormone levels.



Take four TestoPrime capsules every morning before breakfast.



While one bottle of TestoPrime costs £54.99, the best-value deal is the buy three months, get two free deal which costs you £164.99.



TestoPrime contains a range of ingredients that aim to boost testosterone and have additional benefits, including enhanced energy levels.


>>Check the best deals for TestoPrime

2. D-Bal Max - Ideal for Muscle Growth

Eastern Daily Press:


  • Promotes muscle gains
  • Encourages rapid recovery
  • Boosts energy levels
  • Contains antioxidants for muscle tissue protection



  • May cause side effects if sensitive to caffeine



D-Bal Max’s additional benefits for cellular health make it the best testosterone booster for muscle growth.


Benefits of D-Bal Max

We recommend D-Bal Max if you are an older man who wants to start rebuilding muscle tissue or pay more attention to maintaining what you already have.

One key ingredient in D-Bal Max is SenActiv, a proprietary blend of Panax notoginseng and Rosa roxburghii.

A study using muscle biopsies from men performing squat exercises showed that a substance in ginseng can significantly reduce muscle stem cell aging. This was through an immune-boosting effect, which helped to remove “zombie” cells that cause more tissue aging [3].

Other ingredients, such as arginine, may also help to raise testosterone levels. A trial combining arginine with pycnogenol, an antioxidant-rich pine bark extract, found both improvements in erectile function and testosterone. Levels of the hormone rose from 15.9 to 18.9nmol/L over six months [4].

Who Should Avoid D-Bal Max?

If you are sensitive to caffeine, D-Bal Max may not be right for you. TestoPrime is a suitable alternative as it does not contain a stimulant.


Take four capsules of D-Bal Max 30 or 45 minutes before your workout.


The best value deal for D-Bal Max is £194.99 for five bottles. If you want to try just one bottle, it costs £64.99 for 120 capsules or 30 doses.


D-Bal Max contains natural testosterone-boosting ingredients that may help balance your T levels. However, you should try other options if you're caffeine-sensitive.

>>Check the best deals for D-Bal Max here

3. Testo-Max - Suitable for Fertility

Eastern Daily Press:


  • Boosts testosterone through luteinizing hormone
  • Essential nutrients such as vitamin D3 and zinc
  • Black pepper for enhanced absorption
  • Reduces recovery time



  • The high dose of vitamin B6 may be harmful in some people



Testo-Max is a natural testosterone booster that claims to act as an alternative to Sustanon, with a spread of essential nutrients and herbal remedies.

Benefits of Testo-Max

Testo-Max is the best testosterone booster for fertility. It contains ingredients such as Ashwagandha, Fenugreek, Zinc, and Vitamin D that may enhance testosterone production and support overall male health.

Another ingredient in Testo-Max is D-aspartic acid, which increases the release of luteinizing hormone (LH). One study found a significant rise in both LH and testosterone by 12 days but not at six days, so you may need to take it long-term [5].

Testo-Max may reduce the binding of testosterone to sex hormone-binding globulin (SHBG) through its magnesium and zinc content.

Magnesium not only assists in preventing muscle cramps and producing energy, but it can take up space on SHBG proteins, setting testosterone free [6]. When zinc binds to SHBG, it changes its shape, so testosterone doesn’t bind as well [7].


Who Should Avoid Testo-Max?

If you have a smaller-than-average body weight or need to take another product containing vitamin B6, Testo-Max may contain a risky level of this vitamin.


Take four capsules of Testo-Max daily 20 minutes before working out or breakfast.


Testo-Max costs £49.99 for one bottle, or you can get three for £99.99.


Testo-Max works at multiple steps of your testosterone production pathways, including the hormones that stimulate its production.

>>Check the best deals for Testo-Max here

4. Prime Male - All-Round Hormonal Support

Eastern Daily Press:


  • Promotes lean muscle gains
  • Boosts physical performance
  • Provides essential nutrients for testosterone production
  • Enhances libido and energy levels



  • The complete ingredients list is difficult to find



Prime Male is the best testosterone booster for all-round male hormonal health, addressing several low T symptoms.


Benefits of Prime Male

We recommend Prime Male for men who want holistic support for their testosterone levels, not just one cofactor, alongside ingredients with general health benefits. It contains a blend of scientifically backed ingredients that may increase libido, improve erection quality and function, and enhance overall sexual performance.

One key ingredient in Prime Male is nettle root, which contains a substance that prevents testosterone from being attached to SHBG [7]. It also contains magnesium and zinc.


Who Should Avoid Prime Male?

Men with existing prostate issues should consult a healthcare provider before using Prime Male.


Take one Prime Male capsule four times during the day.


The best value deal for Prime Male is a four-month package that includes a Boss Prime workout and nutrition plan for £135. A one-month supply is priced at £45.


Prime Male not only boosts your testosterone levels but can also prevent it from being bound up and inactivated.

>>Check the best price for Prime Male here


5. Testogen - Testosterone Booster for Male Health and Wellness

Eastern Daily Press:


  • Includes both vitamin D3 and boron for bone health
  • Uses zinc citrate for improved absorption
  • Nettle extract for SHBG reduction
  • Full 100-day money-back guarantee



  • Vitamin K1 does not have the same range of benefits as vitamin K2



Testogen is one of the best testosterone booster supplements for overall male health and vitality. The supplement contains natural ingredients that may address the symptoms of low testosterone levels.


Benefits of Testogen

The official Testogen site cuts no corners in demonstrating ingredient efficacy, with several sources to back up their 11 ingredients. Zinc features nine papers, while vitamin D boasts an impressive list of 14 studies.

For example, one reference describes the benefits of fenugreek in exactly the population looking for testosterone booster supplements. After 12 weeks, older men taking fenugreek saw a significant increase in both total and free testosterone. They also improved scores in the physical, mental, and sexual components of the Aging Male Symptom questionnaire [8].


Who Should Avoid Testogen?

Testogen may not be the best option if you need vitamin K2 supplementation.



Take four capsules of Testogen every day, around 20 minutes before breakfast.


While one bottle of Testogen costs £49.99, you can save with the three-month package, which costs £99.99.


Testogen offers customers the confidence that their product is likely to have some benefit, thanks to their extensive reference list.

>>Check the best price for Testogen here

6. Testosil - Suitable for Active Men

Eastern Daily Press:


  • D-aspartic acid for increasing LH and T levels
  • Ginseng and ashwagandha boost overall energy production
  • 100% lifetime money-back guarantee



  • High doses of vitamin B6 may be inappropriate for some people



Testosil has been recognized as the best testosterone booster for active men, primarily due to its effectiveness in enhancing muscle size and strength. It may also play a significant role in reducing muscle damage from exercise, improving cognitive functions, and aiding in fat reduction.

Benefits of Testosil

Testosil is an exceptional choice for active men seeking to improve their physical and cognitive performance.

Its key ingredient, KSM-66, is an ashwagandha extract that can boost testosterone, muscle strength, and size while simultaneously reducing cortisol levels [9].

Another critical ingredient, D-Aspartic Acid (D-AA), plays a vital role in synthesizing testosterone and regulating hormone functions. This mechanism may ensure peak performance throughout the day and during workouts.


Who Should Avoid Testosil?

We do not recommend Testosil if you take blood thinners due to the anti-clotting properties of garlic.


Take two capsules of Testosil twice every day.


Enjoy the biggest savings with Testosil’s three months + two months free deal at $179.99. Just one month costs $59.99.


Testosil stands out for its multi-faceted benefits, particularly in muscle growth and cognitive improvement. It's a go-to choice for men aiming to boost their physical performance and mental sharpness.

>>Check the best deals for Testosil here


7. XWERKS - Formulated for Older Men

Eastern Daily Press:


  • Includes essential nutrients
  • Black pepper to enhance absorption
  • Boosts energy levels and mood
  • Promotes muscle gains



  • Free shipping only on orders over $75



Thanks to its unique ingredients, XWERKS Rise is the best testosterone booster for older men who want all-around anti-aging support.


Benefits of XWERKS Rise

XWERKS Rise is a new testosterone booster that has quickly gained popularity for its effectiveness. It contains natural ingredients such as Shilajit, Tongkat Ali, Boron, and Zinc that have been proven to increase testosterone levels and support overall male health.

Shilajit is a popular Ayurvedic remedy, and studies show that it may increase total testosterone levels, with similar results seen for free testosterone [10].

A clinical study found that Tongkat Ali increased the percentage of older men with testosterone in the normal range from 35.5% to 90.8%. Those with no issue on the Aging Males’ Symptoms score rose from 10.5% to 71.7%, suggesting functional anti-aging benefits [11].


Who Should Avoid XWERKS?

XWERKS is made of gelatin-based capsules and may not be suitable for vegans.


Take two capsules of XWERKS every day.


XWERKS costs $49 for a one-time purchase, or you can save 5% with a subscription for a final price of $46.55.


XWERKS Rise’s simple yet effective formula may relieve age-related complaints in older men.

>>Check the best deals for XWERKS

8. TestoFuel - Ideal for Boosting Libido

Eastern Daily Press:


  • Contains vitamin K2 for circulatory health
  • D-aspartic acid and zinc are “classic” testosterone boosters
  • Panax ginseng for energy production
  • Accelerates muscle growth



  • Not suitable for vegans



TestoFuel is designed to boost testosterone levels, which is crucial for muscle growth, strength gains, and overall physical performance. It's formulated with natural ingredients like D-Aspartic Acid, Vitamin D, and Oyster Extract, known to enhance libido, improve mood, and increase energy levels.

Benefits of TestoFuel

Consider TestoFuel if you are struggling in the bedroom and want to enjoy intimacy more again. One of its ingredients is the oyster extract, which may shift the expression of genes in testosterone-producing cells to a healthier state. This means greater testosterone production and more nitric oxide, which helps widen blood vessels [12].

Who Should Avoid TestoFuel?

If you are vegan, TestoFuel is likely unsuitable for you as it contains an oyster extract. You may also consider alternatives like TestoPrime if you have a shellfish allergy.


Take four capsules of TestoFuel every day.


The best value deal is the Ultimate Muscle Gainer’s package, which costs £119.96 for four months plus a Boss Lean Mass diet and exercise program. One bottle costs £39.99.


TestoFuel offers a natural and effective way to boost libido and testosterone levels. Its focus on natural ingredients like oysters ensures a potent approach to achieving these health goals.

>>Check the best prices for TestoFuel here

9. Provacyl - Ideal for Enhancing Mental Energy

Eastern Daily Press:


  • Boosts HGH and testosterone levels
  • Enhances libido
  • Antioxidant-rich acai and other ingredients
  • 67-day money-back guarantee



  • Money-back guarantee only for bulk orders



Provacyl leaves no stone unturned and is the best testosterone booster for improving mental energy.

Benefits of Provacyl

We rate Provacyl as among the best testosterone supplements for men who struggle with mental fatigue. One of its many ingredients is tyrosine, the amino acid that gets converted to dopamine. Dopamine assists you in boosting motivation by increasing effort tolerance, alongside improving physical functioning [13].

Who Should Avoid Provacyl?

Provacyl appears to contain glandular extracts such as hypothalamus powder, making it unsuitable for vegans.


Take two capsules in the morning, and two more in the evening.


Provacyl typically costs £47.35 for one month’s supply. You can save by paying £212.44 for six months or £307.22 for 12 months.


Provacyl contains a range of ingredients, including tyrosine, that boost both testosterone and key neurotransmitters and hormones for mental energy.

>>Check the best deals for Provacyl here


10. Testodren - Single Ingredient Testosterone Booster

Eastern Daily Press:


  • Contains a standardized extract of fenugreek
  • 67-day money-back guarantee
  • Simple formula and dosage
  • Allergen-friendly formula



  • Doesn’t contain essential minerals and nutrients like zinc



Testodren, by PrimeGENIX, is an all-natural, single-ingredient testosterone booster derived from the Fenugreek herb.


Benefits of Testodren

Testodren’s strength lies in its singular ingredient - a 500 mg dose of a Fenugreek-based compound. This formula has undergone rigorous testing in three separate human clinical trials, each confirming an increase in testosterone levels.

In one study, 90% of participants saw up to a 46% improvement in free testosterone, with 85.4% showing enhanced fertility [14]. Fenugreek has also been shown to significantly enhance both free and bound testosterone levels within 12 weeks of treatment. Plus, it contributes to improved mental alertness and mood [15].


Who Should Avoid Testodren?

Consider alternatives like TestoPrime if you’re looking for a more comprehensive formula.


Simply take one capsule of Testodren in the morning during breakfast time.


For the best value, six months’ worth of Testodren is £157.93. Just one bottle costs £47.35.


Testodren stands out as a straightforward solution for boosting testosterone levels. Its single-ingredient formula, backed by scientific research, offers a hassle-free approach to enhancing physical and mental well-being

>>Check the best deals for Testodren


11. Testo Lab Pro - Suitable for Fast Results

Eastern Daily Press:


  • Includes 30mg of zinc
  • Also contains 600mg of ashwagandha extract
  • Fast worldwide shipping



  • High doses may be inappropriate for some people



Testo Lab Pro doesn’t mess around. Its high doses of key ingredients place it among the best testosterone supplements for fast results.

Benefits of Testo Lab Pro

Consider Testo Lab Pro if you have a larger body size or need greater support. High doses of certain ingredients can be beneficial, at least in the short term, as shown by a study of postmenopausal women taking larger amounts of zinc. Afterward, their testosterone doubled from 25.79 to 50.19ng/mL, which was not seen in the placebo group [16].

Testo Lab Pro’s significant dose of ashwagandha is another stand-out feature. Men taking ashwagandha found much greater muscle growth and increases in testosterone. While the placebo group’s T levels rose by 18ng/dL, the ashwagandha group’s levels increased by 96.2ng/dL [17].


Who Should Avoid Testo Lab Pro?

Testo Lab Pro’s high doses may be unsuitable for people with smaller body sizes.


Take four capsules of Testo Lab Pro every day.


While one month’s supply costs £49, the four-month package is just £147, or £36.75 per bottle.


Testo Lab Pro provides high-dose support, placing it among the best testosterone supplements if you have a larger body size.

>>Check the best deals for Testo Lab Pro here


What Is Testosterone?

Testosterone is a hormone that plays a crucial role in male development and overall health. It affects everything from muscle mass and strength to sex drive and mood in both men and women. Your testosterone levels naturally decrease as you age, leading to various symptoms, such as decreased libido, fatigue, and reduced muscle mass.

What Is a Testosterone Booster Supplement?

The best testosterone supplements assist your body in its hormone production. They do not provide hormone replacement therapy, which might have negative effects as this temporarily shuts off your body’s production of the hormone.

What Do Testosterone Boosters Do?

Testosterone boosters are supplements designed to increase testosterone levels in the body. They may help alleviate the symptoms of low testosterone and improve overall health and well-being. Some of the potential benefits of testosterone boosters include:

  • Increased libido and sexual performance
  • Improved muscle mass and strength
  • Enhanced energy levels and overall vitality
  • Reduced body fat and improved weight management
  • Better mood and mental clarity

What to Consider When Looking For Testosterone Boosters

When considering testosterone boosters, it's important to evaluate factors like your specific health needs, age, and the reasons behind your interest in boosting testosterone levels.


It's crucial to understand the ingredients and their potential effects and whether they align with your health goals. Consulting a healthcare professional is highly recommended to ensure the booster is safe for you, especially if you have underlying health conditions or are taking other medications.


Additionally, researching the credibility and reviews of different products can guide you in choosing a reliable and effective supplement.

Testosterone-Boosting Vitamins and Minerals

You will find that the best testosterone supplements share many of the same ingredients, which include:

  • D-Aspartic Acid: An amino acid that plays a role in the production and release of testosterone. It's known for increasing the release of hormones in the brain that lead to testosterone production.
  • Fenugreek: A herb with libido-enhancing and testosterone-boosting properties. It's believed to increase testosterone levels and improve sexual function.
  • Tribulus Terrestris: Often used for its potential to enhance libido and increase testosterone levels, though its effectiveness could vary among individuals.
  • Zinc: An essential mineral that plays a vital role in testosterone production. Zinc deficiency is often linked to lowered testosterone levels.
  • Magnesium: Another key mineral that may increase testosterone levels, particularly when combined with regular exercise.
  • Vitamin D: Its supplementation may increase testosterone levels, especially in individuals with Vitamin D deficiency.
  • Ashwagandha: An adaptogen that could increase testosterone levels, enhance physical performance, and reduce stress and anxiety.

Benefits of Supplements That Boost Testosterone

Natural testosterone-boosting supplements provide significant benefits compared to steroids. They enhance muscle growth and maintenance, contributing to better physical health. Additionally, these supplements lead to a stronger libido, which might positively impact relationships.


They might also play a role in increasing fertility for those trying to conceive. Plus, they could contribute to stronger bones and improved brain function, as sex hormones are crucial for cognition. Furthermore, these supplements are known to elevate mood, enhancing overall well-being.

Potential Side Effects of Testosterone Boosters

While testosterone boosters may offer benefits, they may also come with potential side effects:

  • Risk of allergy to herbal extracts
  • Anxiety if you are caffeine-sensitive
  • Potential supplement-drug interactions

How To Choose Testosterone-Boosting Supplement for You

When doing research of your own, consider your goals and whether the evidence aligns with the product you’re looking at.

Consider Your Specific Goals

Different ingredients have different effects. If your main goal is muscle growth, you may need a different set of ingredients from people who want to support their sexual health.

Money-back Guarantee

A money-back guarantee, preferably between 30 and 100 days, is a sign of integrity and confidence in the product.

Quality and Safety

Always choose products from reputable manufacturers with a track record of producing high-quality supplements. Read customer reviews to get insights into the effectiveness and safety of the product. Also, searching news articles and FDA report databases can help.

Ingredients and Dosage

Look for products that contain scientifically-backed ingredients such as ashwagandha, D-aspartic acid, and vitamin D. Additionally, ensure that the product provides an effective and safe dosage of each ingredient.

What Is the Most Suitable Testosterone Booster for Men Over 50?

Many men over 50 may benefit from exploring supplements to gently boost testosterone, as a mild deficiency is quite common in this age group. We rated XWERKS as one of the best testosterone supplements for older men, as ingredients such as tongkat ali have shown benefits in older men.

What Is the Ideal Testosterone Booster for Women?

For women, the best testosterone booster is typically one that gently balances hormone levels without causing excessive increases in testosterone, like Testodren. Mild, natural ingredient supplements like DHEA, a hormone the body naturally produces to boost testosterone gently, are often suggested.


Herbal extracts like Fenugreek and Tribulus Terrestris also support hormonal health without the harsh effects of stronger testosterone enhancers.

When to See a Doctor About Testosterone Levels

It's advisable to see a doctor about testosterone levels if you experience symptoms such as these:

  • Persistent Symptoms of Low Testosterone: If you experience ongoing symptoms like fatigue, reduced libido, muscle weakness, or depression.
  • Issues with Fertility: Difficulty in conceiving or unexplained infertility.
  • Significant Changes in Mood or Mental Health: Such as severe depression, anxiety, or mood swings.
  • Physical Changes: Including unexplained weight gain, reduced muscle mass, or increased body fat despite a healthy lifestyle.

How We Ranked Testosterone Supplements

How did we rank the best testosterone supplements? Ingredients, dosing, reviews, and value for money all matter.


First, we read each formula and researched the evidence on key ingredients. A formula with more comprehensive benefits earned a higher score.


The dose of each ingredient had to be within the effective range seen in clinical studies. Moreover, the daily dose needed to be convenient to take long-term.


Customer reviews can illustrate the overall customer experience, from product efficacy to delivery times and customer support. We looked for user reviews on social media, not official websites where comments could be written or edited.

Price and Guarantee

Finally, we considered the price of the products in relation to the benefits they offer. Each daily dose should be less than $3, and larger-volume orders should come with discounts. We also rated the best testosterone supplements with longer money-back guarantees highly.


Here, we answer common questions people ask when it comes to finding the best testosterone booster.

What Is the Most Suitable Testosterone Booster on the Market?

TestoPrime is often regarded as one of the best testosterone boosters on the market. It is praised for its natural ingredients that target multiple steps of testosterone production, enhancing its effectiveness.


Additionally, it aids in burning unwanted fat and building lean muscle, making it a popular choice for those looking to improve their physical fitness and hormonal balance.

Do Any Testosterone Boosters Really Work?

Some testosterone boosters might be effective, especially those containing ingredients with scientific backing. These ingredients, like D-aspartic acid, fenugreek, and zinc, have been shown in studies to support testosterone levels, particularly in individuals with deficiencies or low levels.

What is the Most Effective Way to Boost Testosterone Levels?

The best way to naturally increase testosterone involves a combination of lifestyle changes. Regular exercise, especially strength training, and high-intensity interval training, has been shown to boost testosterone levels. Additionally, maintaining a balanced diet rich in proteins, getting enough sleep, and reducing stress are crucial for optimal testosterone production.

What Supplements Increase Testosterone Fast?

For fast results, you may consider one of the best testosterone supplements, like Testo Lab Pro. It contains ​​high doses of natural testosterone-boosting ingredients. However, it's important to consult a healthcare professional before using any of the top supplements to increase testosterone.

Testosterone Boosters: Final Word

The best testosterone supplements provide you with holistic support for hormone production and overall health. Their ingredients have evidence to back up these claims and show significant increases in testosterone, inhibition of SHBG, or both.


Overall, our top choice for the best testosterone booster is TestoPrime. It features critical nutrients for hormone production alongside ingredients for natural energy support, such as ginseng.


  1. Jung, Dong-Hyuk et al. “Effects of ginseng on peripheral blood mitochondrial DNA copy number and hormones in men with metabolic syndrome: A randomized clinical and pilot study.” Complementary therapies in medicine vol. 24 (2016): 40-6. doi:10.1016/j.ctim.2015.12.001
  2. Pilz, S et al. “Effect of vitamin D supplementation on testosterone levels in men.” Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme vol. 43,3 (2011): 223-5. doi:10.1055/s-0030-1269854
  3. Lee, Tania Xu Yar et al. “Reduced stem cell aging in exercised human skeletal muscle is enhanced by ginsenoside Rg1.” Aging vol. 13,12 (2021): 16567-16576. doi:10.18632/aging.203176
  4. Ledda, Andrea et al. “Investigation of a complex plant extract for mild to moderate erectile dysfunction in a randomized, double-blind, placebo-controlled, parallel-arm study.” BJU international vol. 106,7 (2010): 1030-3. doi:10.1111/j.1464-410X.2010.09213.x
  5. Topo, Enza et al. “The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats.” Reproductive biology and endocrinology : RB&E vol. 7 120. 27 Oct. 2009, doi:10.1186/1477-7827-7-120
  6. Excoffon, L et al. “Magnesium effect on testosterone-SHBG association studied by a novel molecular chromatography approach.” Journal of pharmaceutical and biomedical analysis vol. 49,2 (2009): 175-80. doi:10.1016/j.jpba.2008.10.041
  7. Round, Phillip et al. “Molecular interactions between sex hormone-binding globulin and nonsteroidal ligands that enhance androgen activity.” The Journal of biological chemistry vol. 295,5 (2020): 1202-1211. doi:10.1074/jbc.RA119.011051
  8. Rao, Amanda et al. “Testofen, a specialised Trigonella foenum-graecum seed extract reduces age-related symptoms of androgen decrease, increases testosterone levels and improves sexual function in healthy aging males in a double-blind randomised clinical study.” The aging male : the official journal of the International Society for the Study of the Aging Male vol. 19,2 (2016): 134-42. doi:10.3109/13685538.2015.1135323
  9. Lopresti, Adrian L., et al. “A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha ( Withania Somnifera) in Aging, Overweight Males.” American Journal of Men’s Health, vol. 13, no. 2, 2019, p. 1557988319835985, doi:10.1177/1557988319835985.
  10. Pandit, S et al. “Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers.” Andrologia vol. 48,5 (2016): 570-5. doi:10.1111/and.12482
  11. Tambi, M I B M et al. “Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism?.” Andrologia vol. 44 Suppl 1 (2012): 226-30. doi:10.1111/j.1439-0272.2011.01168.x
  12. Zhang, Wanwan et al. “Enzymatic preparation of Crassostrea oyster peptides and their promoting effect on male hormone production.” Journal of ethnopharmacology vol. 264 (2021): 113382. doi:10.1016/j.jep.2020.113382
  13. Hase, Adrian et al. “Behavioral and cognitive effects of tyrosine intake in healthy human adults.” Pharmacology, biochemistry, and behavior vol. 133 (2015): 1-6. doi:10.1016/j.pbb.2015.03.008
  14. Maheshwari, Anuj, et al. “Efficacy of FurosapTM, a Novel Trigonella Foenum-Graecum Seed Extract, in Enhancing Testosterone Level and Improving Sperm Profile in Male Volunteers.” International Journal of Medical Sciences, vol. 14, no. 1, 2017, pp. 58–66, doi:10.7150/ijms.17256.
  15. Sankhwar, S. N., et al. “Safety and Efficacy of Furosap®, a Patented Trigonella Foenum-Graecum Seed Extract, in Boosting Testosterone Level, Reproductive Health and Mood Alleviation in Male Volunteers.” Journal of the American Nutrition Association, vol. 42, no. 1, 2023, pp. 27–35, doi:10.1080/07315724.2021.1978348.
  16. Maheshwari, Anuj, et al. “Efficacy of FurosapTM, a Novel Trigonella Foenum-Graecum Seed Extract, in Enhancing Testosterone Level and Improving Sperm Profile in Male Volunteers.” International Journal of Medical Sciences, vol. 14, no. 1, 2017, pp. 58–66, doi:10.7150/ijms.17256.
  17. Mazaheri Nia, Leila et al. “Effect of Zinc on Testosterone Levels and Sexual Function of Postmenopausal Women: A Randomized Controlled Trial.” Journal of sex & marital therapy vol. 47,8 (2021): 804-813. doi:10.1080/0092623X.2021.1957732
  18. Wankhede, Sachin et al. “Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial.” Journal of the International Society of Sports Nutrition vol. 12 43. 25 Nov. 2015, doi:10.1186/s12970-015-0104-9