Testofen: Effective Testosterone Booster or Overhyped Fraud?


Fenugreek, and its patented counterpart Testofen, have been praised as natural testosterone boosters for years.

According to its reputation, this supplement contains phytochemicals that increase libido, regulate glucose levels, and even treat erectile dysfunction. Additionally, it contains steroidal saponins, which could potentially increase testosterone production.

According to researchers at Sabinsa Corporation, “the anabolic effects of the furostanol saponins could be potentially used to induce increase muscle mass and strength, with the consequent improvement in athletic performance . . . The furostanols preparation also increased testosterone levels and spermatogenesis.” [1]

Is this herb effective for guys?

RELATED: See the Top Rated Testosterone Supplements of the Year

What Do Researchers Have to Say?

Interestingly, clinical studies involving Testofen’s effects on testosterone are often mixed.

On one end, it seems to be the perfect testosterone booster, but on the other, some fenugreek users don’t experience any benefits at all.

For Fenugreek
In an 8 week study involving 30 young males, participants were given either a 500 mg fenugreek capsule or a placebo. They then participated in a supervised resistance exercise routine.

Throughout the study, those who received fenugreek supplements significantly increased both total and bioavailable (free) testosterone. Estradiol and DHT levels also increased, though not significantly. And no hormone changes were experienced by the placebo group.

The researchers concluded, “500 mg of daily AI supplementation significantly affected percent body fat, total testosterone, and bioavailable testosterone.” [2]

testofen effective testosterone booster or overhyped fraudSounds pretty good right?

Against Fenugreek.
In a separate study, published in Medicine & Science in Sports & Exercise, fenugreek extract supplementation had no effect on testosterone in resistance trained males. [3]

According to the faculty of the Harvard Medical School, “Fenugreek may alter the levels of thyroid hormones in your body.” [4] This, in turn, makes it difficult to keep hormones in sync.

Additionally, high fenugreek doses may cause side effects such as diarrhea, stomach upset, bloating, gas, and even a “maple syrup” odor in urine.


You can find Testofen online at Amazon.com for $14.99 per bottle.

The Bottom Line

Since scientific studies have achieved only mixed results so far, it would be best to hold off taking any supplements that contain Testofen until more is known about how it interacts with the body.


[1] Mahammed majeed, PhD, and Lakshmi Prakash, PhD. “Fenusterols: Product Write-Up.” Sabinsa Corporation. 2007. P 4. Available from: https://www.sabinsa.com/products/standardized-phytoextracts/fenusterols/fenusterols.pdf

[2] Wilborn et al. “Effects of a purported aromatase and 5α-reductase inhibitor on hormone profiles in college-age men.” International Journal of Sport Nutrition and Exercise. 2010 Dec;20(6):457-65. Available from: https://www.ncbi.nlm.nih.gov/pubmed/21116018

[3] Taylor, Lem W.; Wilborn, Colin D.; Bushey, Brandon; Poole, Chris; Foster, Cliffa A.; Campbell, Bill; Kreider, Richard B. FACSM; Willoughby, Darryn S. “Fenugreek Extract Supplementation Has No Effect On The Hormonal Profile Of Resistance-trained Males.” Medicine & Science in Sports & Exercise: May 2009 – Volume 41 – Issue 5 – p 228 doi: 10.1249/01.MSS.0000355250.80465.30. Available from: https://journals.lww.com/acsm-msse/Citation/2009/05001/Fenugreek_Extract_Supplementation_Has_No_Effect_On.2285.aspx

[4] A. Kassem, et al. “Contraception”; Evaluation of the Potential Antifertility Effect of Fenugreek Seeds in Male and Female Rabbits.” Contraception. March 2006. Available from: https://www.ncbi.nlm.nih.gov/pubmed/16472574

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