T Hero Review

Written by: Stuart Roberts. Last updated: February 9th 2026

It’s generally a good idea for men to start looking into testosterone boosters in their thirties or forties. Your energy dips, recovery from training slows, body composition shifts in the wrong direction, strength falls, and libido becomes patchy… This is all perfectly normal, and it’s generally caused by declining testosterone levels [1,2]. It’s why natural testosterone support has quite rightly become popular, and why the market is currently burgeoning with supplements aimed at doing exactly this.

Essential Elements’ T Hero is one such supplement, designed as a daily testosterone support formula with a strong emphasis on stress reduction and overall male vitality (no bad thing). This includes support in the gym, at work, in the bedroom, and so on. On paper, it’s an adaptogen heavy recipe (think ashwagandha and shilajit and the like), with a few compounds like DIM and boron thrown in for more direct testosterone support.

However, is it all that? Can it achieve its aims, and are its claims well supported? And, importantly, given the rich and varied state of the current testosterone support sphere, how does it place alongside its competition – products like Testogen, which really do lead the market?

Table of Contents: Quick Links

T Hero

51%

Fill Counter

Overall Rating

Overall Verdict

T Hero lacks most of the basics I would like to see in any competent testosterone support.
It doesn’t include any vitamin D, zinc, magnesium, vitamin K2, or D-aspartic acid - nutrients consistently linked with healthy testosterone in the literature.
T Hero may be good for men who struggle with stress management and who need a bit of general wellbeing support, rather than testosterone support.
Our Recommendation: Our top-rated supplement, Testogen, is far more comprehensive; it contains clinically relevant D-aspartic acid, key micronutrients, and standardized adaptogens which will give you all the benefits of T Hero (stress relief and wellbeing support) whilst also directly supporting improved testosterone production.

Testogen

90%

Fill Counter

Overall Rating

Check Latest Testogen Deals

Quick Decision Guide: T Hero vs Our Top-Rated Testosterone Booster (Testogen)

Criteria	T Hero	Testogen
Overall Rating	51% Fill Counter	90% Fill Counter
Main Benefits	May support stress management, general wellbeing	Supports increases in T-levels. Notable increase in energy, increased drive, libido, supports muscle growth.
Scientific Backing	Somewhat limited	Strong
Formula Complexity	Simple, but missing many proven ingredients	High, scientifically proven approach
Brand Reputation Concerns	No major issues beyond questions over product effectiveness	None, praised for efficacy
Commitment Time For Results	Weeks to months, modest results	Weeks, consistent use recommended for best results
User Reviews	Mixed reviews	Predominantly positive reviews
Formula Complexity	Simple	Clear information on dosages (transparent label information)
Potential Side Effects	Low risk overall	None, well-tolerated
Customer Support & Returns Policy	Good, standard return options available	Excellent, with 60 day money-back guarantee
Product Availability	Available online	Available through the official site only
Additional Benefits	None	Clean ingredient profile
Cost	Mid-range	Mid-range
Serving Size	2 capsules	4 capsules
Servings Per Container	30	30
Price	Check T Hero Price	Check Latest Testogen Deals

What Is T Hero

T Hero is Essential Elements’ offering in the ever-growing testosterone support/boosting supplement market. I’ve long admired Essential Elements – they are well-known for emphasising clean labels with minimal to no obfuscation (no small thing in today’s market), minimal fillers, and pretty straightforward ingredients lists. It comes in capsule form, which is easy to take on a daily basis, and it really doesn’t bring many side effects to the table. It’s gentle in every way, both to its credit and detriment.

T Hero is a funny one. I admire it, in a way, much as I do Essential Elements’ broader catalogue. Unlike many testosterone boosters that take a bit of a scattergun approach, trying to cover multiple mechanisms, T Hero uses a much more focussed approach – it only really targets stress relief in any meaningful way, but it does a decent job of doing so.

This would be fine, except that it’s marketed as a testosterone booster. No doubt, adaptogens can help with testosterone output; they help to deal with stress, which has a profound impact on testosterone output. And, after marketing it as a testosterone booster, Essential Elements then devote much of their messaging on stress, energy, libido, and overall male vitality rather than direct hormone stimulation, so they know their own limitations and carry on anyway.

It’s all reflected in their formula, which is based primarily around ashwagandha whole plant extract (one of my favourite ingredients for stress relief and overall health and wellbeing) and shilajit standardised to 20% fulvic acid. It’s all very good for adaptogenic support and will very likely bring cortisol levels down. As cortisol enjoys something of an inverse correlation with testosterone, this should work. However, I would like more; I would expect a bit more punch in a top end testosterone booster, including some actual direct testosterone support.

I don’t think that’s too big an ask.

Do note, importantly, that T Hero is not a medical intervention, nor is it a replacement for exogenous testosterone. Nor do Essential Elements claim that it is, of course. If you need either, you’re best off talking to your healthcare provider.

Main Claims and My Assessment

Broadly speaking, we can group T Hero’s core claims into three broad areas: testosterone support, stress reduction, and improved vitality (including libido and performance).

Of these, the first is a bit of a bust (it doesn’t do much to directly support testosterone output), the second is on the mark, and the third is a little woolly, but it T Hero stakes a good claim to its ability to deliver.

The picture clears up a bit when you look into the biology underpinning their claims. Firstly, ashwagandha is pretty solid. There is a good reason that it’s one of the industry’s go-to ingredients for adaptogenic relief. There is good clinical evidence showing its ability to reduce perceived stress and cortisol, which can indirectly support testosterone in stressed men [3–5]. Shilajit has some emerging data suggesting benefits for energy and possibly testosterone in specific populations, though the evidence is a bit thinner on the ground [6,7].

Now, with regards the second point (testosterone support), T Hero doesn’t leave you completely out in the cold. It does give you a fair dose of DIM and boron, which can be better understood as hormone-modulating compounds. However, DIM’s effects are generally on oestrogen metabolism rather than testosterone production itself, which gives it a tangential rather than a direct relationship with testosterone output [8]. Boron has been associated with changes in free testosterone and inflammatory markers in small human studies, but results are variable and highly context-dependent [9,10]. If I were to choose only two ingredients to underpin testosterone support (and I wouldn’t – I would want far more), I wouldn’t choose these two.

T Hero isn’t very good at addressing the nutritional factors most consistently linked with testosterone output, however. Vitamin D, zinc, magnesium, and energy-related aminos like D-aspartic acid are notable for their absence, which is a crying shame [11-15].

Testogen is a good contrast to this. It’s built around these fundamentals, its whole formula designed to hit what is needed the most. You get adaptogens, of course, but they are layered on top of a good foundation, rather than being the foundation themselves. Overall, it’s a far more comprehensive recipe for men whose goal is sustained testosterone and performance support from a mechanistic point of view, rather than stress management alone.

My Experience with T Hero

I’m sort of T Hero’s target audience – a fit 35-year-old man with a busy life and a tendency towards stress and anxiety, and natural testosterone output on the low side (hence my interest in testosterone boosters). So, if anyone should benefit from using it, it’s me – and I have used adaptogens, particularly ashwagandha, to great effect in the past.

I might have been expecting good things, though given I had read the ingredients list and know a bit about this kind of thing, I wasn’t. The changes to perceived stress, which are inherently hard to measure objectively, were what I would generally expect in the first couple of weeks of using a good adaptogenic formula based on ashwagandha [3,4]. I was calmer, especially during work, and my sleep improved a little. I didn’t wake up so much in the night, and found it easier to drop off at all times. My training performance didn’t change, but it was perhaps steadier than normal, with good motivation of the kind I would usually expect on calmer days. All nice in the first month or so.

These effects plateaued in the following few weeks. Energy was stable, but not elevated, and I didn’t experience any of the other benefits you would typically expect from high levels of natural testosterone output. Libido was the same, as was gym performance, and my body composition was stable. This didn’t surprise me given the absence of nutrients directly involved in testosterone synthesis.

T Hero was very easy to live with, which is very important – if you get into a supplement like this, the aim is to take it long term, pretty much indefinitely, so you need to be able to get on with it. The tablets were easy to swallow, and I didn’t experience any side effects. No gastrointestinal upset, no headaches, and no sleep disruption, which is unsurprising in a formula free from stimulants.

T Hero is, then, an OK adaptogenic supplement with some clear, if not profound, benefits for stress relief. I cannot in good conscience recommend it for testosterone support, however. And, if you’re looking for stress relief, just basic ashwagandha or any generic adaptogenic formula will do as good a job, if not better, at a fraction of the price.

Check Latest Testogen Deals

Ingredient Review – Scientific Assessment

T Hero Ingredients (click to reveal)

Ashwagandha Whole Plant Extract (600mg), Shilajit Extract (20% fulvic acid) (500mg), Diindolylmethane (100mg), Boron (as boron citrate) (5mg), BioPerine® Black Pepper Fruit Extract (95% piperine) (5mg)

Other ingredients: Cellulose (capsule and powder), vegetable oil powder, silica.

Given how spartan T Hero’s ingredients list is, it’s worth exploring each one closely. After all, what might appear as sparse may in fact be focussed, with great results without having to throw everything but the kitchen sink at a supplement.

For me, ashwagandha is very much the star of the show. I’ve always loved it, always benefitted from it, and am always glad to see it in this kind of supplement. It’s one of the best ingredients going for stress reduction and cortisol modulation [3–5]. Some trials show small increases in testosterone in stressed or infertile men, but results depend heavily on extract type and dose [16]. Whole-plant extracts, of the kind you get in T Hero, are generally less targeted than standardized root extracts like KSM-66, which I would have preferred to have seen used here.

Nevertheless, it’s a good foundation for a supplement claiming to boost testosterone by bringing stress levels down.
Shilajit (20% fulvic acid) is an interesting one. If I would always expect to see ashwagandha in this kind of supplement, I have rarely come across Shilajit. There is some intriguing, though highly limited, evidence for its ability to bolster energy and testosterone in select groups [6,7]. However, long-term safety and effectiveness data in healthy men remain sparse.
In other words, we don’t really know for sure if it works; and, if it does work, we don’t really know to what extent.

Diindolylmethane, or DIM, is always a good supporting actor in testosterone support – though it seems to be touted here as a major player. It is not a direct testosterone booster and should not be mistaken for such booster [8,17]. Rather, it supports oestrogen metabolism. Oestrogen, like cortisol, enjoys something of an inverse relationship with testosterone. The more you have of one, the less you will have of another. So, helping to metabolize it – to clear it from your system, sort of – should help with overall hormone balance and leave the way clear for more testosterone.

It’s useful, certainly, but it doesn’t directly support testosterone output. Again, a supporting player, not the main event.
There are several vitamins and minerals I would expect to see in any good testosterone booster (they’re pretty much all there in Testogen’s formula). Boron is one of them, and you get it here, which is nice. It plays a role in steroid hormone metabolism and inflammation. Small studies show potential effects on free testosterone, but findings are inconsistent [9,10,18]. And it is just one of the minerals I would like to see – zinc, magnesium, and a host more are left out. So, a good include, but pretty stingy.

Finally, you get some BioPerine® (black pepper extract). It’s always good to see black pepper extract in any supplement, and BioPerine® is one of the best. It delivers plenty of high quality piperine, which helps with absorption. There is no direct benefit to be gained for testosterone production, but that’s not the point. It makes everything else a little more effective [19].

That’s it, and such a list really is spartan, not focussed and lean. There is a lot missing, which, to me, is the main thing that stands out. Vitamin D deficiency is a real problem in many countries and is very closely associated with low testosterone [11,12]. I would want to see it in a top drawer product. So too are zinc and magnesium deficiencies both common and critical for androgen production and binding [13-15]. I do not trust a testosterone booster that misses zinc, as a rule. D-aspartic acid has human evidence supporting short-term increases in testosterone at doses similar to those used in Testogen [20-22], and I want to see it here. The list goes on, and really, it’s just not good enough.

Though it shows some promise, there is simply no way to justify investing your money and hopes in T Hero in my view, when other, much, much better supplements exist at a very similar price point. By way of example, our top-rated supplement, Testogen uses many of the same nutrients, alongside standardized adaptogens and transparent dosing. Testogen's approach is far more coherent, far more in line with the scientific literature, and just better in pretty much every way. All for as near as makes no difference the same price.

T hero - Pros and Cons

Pros

Transparent label information.
Some useful adaptogens included.
No stimulants.

Cons

Doesn't include a number of proven ingredients.
No vitamin D, no zinc, no magnesium, no vitamin K2, no D-aspartic acid.
Modest overall dosage - only 1210mg vs nearly 3000mg for the most effective products we've tested.

Check Latest Testogen Deals

Main Side Effects and Issues

As above, T Hero is gentle in every way, for better and worse. Worse, because it won’t do much in the end to support healthy testosterone output. Better, because at least everything in its formula is typically well tolerated. Reported or plausible side effects include mild gastrointestinal discomfort, headaches, or changes in sleep patterns, usually related to adaptogens [3,4,23], but these are mild and rare. I certainly didn’t experience any of these.

DIM isn’t for everyone; it might not be good for those with any kind of hormone-sensitive conditions without proper medical supervision [17]. Shilajit isn’t always the best controlled, either, with a lack of quality control and reports of contamination in some products (though not T Hero, happily) [24].

And, again, do note that it’s no substitute for proper medical attention, nor is it appropriate for anybody suffering with any kind of endocrine disorders, prostate concerns, or those taking prescription medications without medical supervision [25,26].
Other than this, there is nothing worth noting. You’ll be fine taking it, just a bit underwhelmed.

T Hero

51%

Fill Counter

Overall Rating

Overall Verdict

T Hero lacks most of the basics I would like to see in any competent testosterone support.
It doesn’t include any vitamin D, zinc, magnesium, vitamin K2, or D-aspartic acid - nutrients consistently linked with healthy testosterone in the literature.
T Hero may be good for men who struggle with stress management and who need a bit of general wellbeing support, rather than testosterone support.
Our Recommendation: Our top-rated supplement, Testogen, is far more comprehensive; it contains clinically relevant D-aspartic acid, key micronutrients, and standardized adaptogens which will give you all the benefits of T Hero (stress relief and wellbeing support) whilst also directly supporting improved testosterone production.

Testogen

90%

Fill Counter

Overall Rating

Check Latest Testogen Deals

Overall Recommendation

T Hero is far from the worst testosterone booster out there. For those experiencing significant levels of stress and anxiety, it will likely be a help. It’s just that there are better supplements out there to deal with stress and high cortisol output, and there are better supplements out there for directly boosting testosterone output. Its strengths lie in its adaptogens and clean label, not in comprehensive testosterone support.

Testogen provides a stark contrast. It’s the best testosterone booster on the market in my view. Testogen makes fantastic use of clinically relevant D-aspartic acid, vitamin D, zinc, magnesium, boron, vitamin K2, nettle, ginseng, and KSM-66 ashwagandha. In doing so, it hits multiple mechanisms involved in testosterone production, availability, and downstream effects, including directly supporting testosterone production [11-22,27-32]. Basically, Testogen shows the rest of the market how it should be done, and in doing so promises some potentially brilliant results - it’s the one I choose with my own money.

Check Latest Testogen Deals

References

1. Travison, T. G., Araujo, A. B., O’Donnell, A. B., Kupelian, V., & McKinlay, J. B. (2007). A population-level decline in serum testosterone levels in American men. Journal of Clinical Endocrinology & Metabolism, 92(1), 196–202. https://doi.org/10.1210/jc.2006-1375
2. Feldman, H. A., Longcope, C., Derby, C. A., Johannes, C. B., Araujo, A. B., Coviello, A. D., … McKinlay, J. B. (2002). Age trends in the level of serum testosterone and other hormones in middle-aged men. Journal of Clinical Endocrinology & Metabolism, 87(2), 589–598. https://doi.org/10.1210/jcem.87.2.8201
3. Chandrasekhar, K., Kapoor, J., & Anishetty, S. (2012). A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of Ashwagandha root in reducing stress and anxiety. Indian Journal of Psychological Medicine, 34(3), 255–262. https://doi.org/10.4103/0253-7176.106022
4. Lopresti, A. L., Smith, S. J., & Drummond, P. D. (2019). An investigation into the stress-relieving and pharmacological actions of an ashwagandha extract. Medicine, 98(37), e17186. https://doi.org/10.1097/MD.0000000000017186
5. Salve J, Pate S, Debnath K, Langade D. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-blind, Randomized, Placebo-controlled Clinical Study. Cureus. 2019 Dec 25;11(12):e6466. doi: 10.7759/cureus.6466. PMID: 32021735; PMCID: PMC6979308.
6. Pandit, S., Biswas, S., Jana, U., De, S., Mukhopadhyay, S., & Ray, D. (2015). Clinical evaluation of purified shilajit on testosterone levels in healthy volunteers. Andrologia, 48(5), 570–575. https://doi.org/10.1111/and.12482
7. Agarwal SP, Khanna R, Karmarkar R, Anwer MK, Khar RK. Shilajit: a review. Phytother Res. 2007 May;21(5):401-5. doi: 10.1002/ptr.2100. PMID: 17295385.
8. Zeligs, Michael. (1998). Diet and Estrogen Status: The Cruciferous Connection. Journal of Medicinal Food - J MED FOOD. 1. 67-82. 10.1089/jmf.1998.1.67.
9. Naghii, M. R., Mofid, M., Asgari, A. R., Hedayati, M., & Daneshpour, M. S. (2011). Comparative effects of daily and weekly boron supplementation on plasma steroid hormones. Journal of Trace Elements in Medicine and Biology, 25(1), 54–58. https://doi.org/10.1016/j.jtemb.2010.10.001
10. Scorei RI, Rotaru P. Calcium fructoborate--potential anti-inflammatory agent. Biol Trace Elem Res. 2011 Dec;143(3):1223-38. doi: 10.1007/s12011-011-8972-6. Epub 2011 Jan 28. PMID: 21274653.
11. Pilz S, Frisch S, Koertke H, Kuhn J, Dreier J, Obermayer-Pietsch B, Wehr E, Zittermann A. Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res. 2011 Mar;43(3):223-5. doi: 10.1055/s-0030-1269854. Epub 2010 Dec 10. PMID: 21154195.
12. Wehr E, Pilz S, Boehm BO, März W, Obermayer-Pietsch B. Association of vitamin D status with serum androgen levels in men. Clin Endocrinol (Oxf). 2010 Aug;73(2):243-8. doi: 10.1111/j.1365-2265.2009.03777.x. Epub 2009 Dec 29. PMID: 20050857.
13. Prasad AS, Mantzoros CS, Beck FW, Hess JW, Brewer GJ. Zinc status and serum testosterone levels of healthy adults. Nutrition. 1996 May;12(5):344-8. doi: 10.1016/s0899-9007(96)80058-x. PMID: 8875519.
14. Cinar V, Polat Y, Baltaci AK, Mogulkoc R. Effects of magnesium supplementation on testosterone levels of athletes and sedentary subjects at rest and after exhaustion. Biol Trace Elem Res. 2011 Apr;140(1):18-23. doi: 10.1007/s12011-010-8676-3. Epub 2010 Mar 30. PMID: 20352370.
15. Maggio M, Ceda GP, Lauretani F, Cattabiani C, Avantaggiato E, Morganti S, Ablondi F, Bandinelli S, Dominguez LJ, Barbagallo M, Paolisso G, Semba RD, Ferrucci L. Magnesium and anabolic hormones in older men. Int J Androl. 2011 Dec;34(6 Pt 2):e594-600. doi: 10.1111/j.1365-2605.2011.01193.x. Epub 2011 Jun 15. PMID: 21675994; PMCID: PMC4623306.
16. Wankhede, S., Langade, D., Joshi, K., Sinha, S. R., & Bhattacharyya, S. (2015). Examining the effect of ashwagandha supplementation on muscle strength and recovery. Journal of the International Society of Sports Nutrition, 12, 43. https://doi.org/10.1186/s12970-015-0104-9
17. Thomson, Cynthia & Chow, Shh & Roe, D & Wertheim, B & Chalasani, Pavani & Altbach, M & Thompson, Patricia & Stopek, A & Maskaranic, G. (2017). Effect of Diindolylmethane on Estrogen-related Hormones, Metabolites and Tamoxifen Metabolism: Results of a Randomized, Placebo-controlled Trial. Cancer Epidemiology, Biomarkers & Prevention. 26. 435-435. 10.1158/1055-9965.EPI-17-0027.
18. Nielsen, F. H. (2014). Update on human health effects of boron. Journal of Trace Elements in Medicine and Biology, 28(4), 383–387. https://doi.org/10.1016/j.jtemb.2014.06.023
19. Srinivasan, K. (2007). Black pepper and its pungent principle piperine: A review. Critical Reviews in Food Science and Nutrition, 47(8), 735–748. https://doi.org/10.1080/10408390601062054
20. Topo, E., Soricelli, A., D'Aniello, A. et al. The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. Reprod Biol Endocrinol 7, 120 (2009). https://doi.org/10.1186/1477-7827-7-120
21. Willoughby DS, Leutholtz B. D-aspartic acid supplementation combined with 28 days of heavy resistance training has no effect on body composition, muscle strength, and serum hormones associated with the hypothalamo-pituitary-gonadal axis in resistance-trained men. Nutr Res. 2013 Oct;33(10):803-10. doi: 10.1016/j.nutres.2013.07.010. Epub 2013 Aug 15. PMID: 24074738.
22. Melville GW, Siegler JC, Marshall PWM. The effects of d-aspartic acid supplementation in resistance-trained men over a three month training period: A randomised controlled trial. PLoS One. 2017 Aug 25;12(8):e0182630. doi: 10.1371/journal.pone.0182630. PMID: 28841667; PMCID: PMC5571970.
23. Teschke R, Bahre R. Severe hepatotoxicity by Indian Ayurvedic herbal products: a structured causality assessment. Ann Hepatol. 2009 Jul-Sep;8(3):258-66. PMID: 19841509.
24. Saper, Robert & Kales, Stefanos & Paquin, Janet & Burns, Michael & Eisenberg, David & Davis, Roger & Phillips, Russell. (2005). Heavy Metal Content of Ayurvedic Herbal Medicine Products. JAMA : the journal of the American Medical Association. 292. 2868-73. 10.1001/jama.292.23.2868.
25. Bhasin S, Brito JP, Cunningham GR, Hayes FJ, Hodis HN, Matsumoto AM, Snyder PJ, Swerdloff RS, Wu FC, Yialamas MA. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. J Clin Endocrinol Metab. 2018 May 1;103(5):1715-1744. doi: 10.1210/jc.2018-00229. PMID: 29562364.
26. Basaria S. Testosterone therapy in older men with late-onset hypogonadism: a counter-rationale. Endocr Pract. 2013 Sep-Oct;19(5):853-63. doi: 10.4158/EP13318.RA. PMID: 24014017.
27. Armamento-Villareal R, Aguirre LE, Qualls C, Villareal DT. Effect of Lifestyle Intervention on the Hormonal Profile of Frail, Obese Older Men. J Nutr Health Aging. 2016 Mar;20(3):334-40. doi: 10.1007/s12603-016-0698-x. PMID: 26892583; PMCID: PMC4811358.
28. Lau L, Wiebe N, Ramesh S, Ahmed S, Klarenbach SW, Carrero JJ, Stenvinkel P, Thorand B, Senior P, Tonelli M, Bello A. Prospective Study of Associations Between Testosterone, Mortality, and Health Outcomes Among Adults Undergoing Hemodialysis. Kidney Int Rep. 2023 Jun 14;8(9):1875-1878. doi: 10.1016/j.ekir.2023.06.005. PMID: 37705912; PMCID: PMC10496014.
29. Mikulska P, Malinowska M, Ignacyk M, Szustowski P, Nowak J, Pesta K, Szeląg M, Szklanny D, Judasz E, Kaczmarek G, Ejiohuo OP, Paczkowska-Walendowska M, Gościniak A, Cielecka-Piontek J. Ashwagandha (Withania somnifera)-Current Research on the Health-Promoting Activities: A Narrative Review. Pharmaceutics. 2023 Mar 24;15(4):1057. doi: 10.3390/pharmaceutics15041057. PMID: 37111543; PMCID: PMC10147008.
30. Lee S, Rhee DK. Effects of ginseng on stress-related depression, anxiety, and the hypothalamic-pituitary-adrenal axis. J Ginseng Res. 2017 Oct;41(4):589-594. doi: 10.1016/j.jgr.2017.01.010. Epub 2017 Jan 24. PMID: 29021708; PMCID: PMC5628357.
31. Hackney AC, Willett HN. Testosterone Responses to Intensive, Prolonged Endurance Exercise in Women. Endocrines. 2020 Dec;1(2):119-124. doi: 10.3390/endocrines1020011. Epub 2020 Nov 5. PMID: 33251528; PMCID: PMC7695234.
32. National Institutes of Health, Office of Dietary Supplements. (2023). Dietary supplements and testosterone. https://ods.od.nih.gov