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HORMONAL SUPPORT

Fenugreek (Testofen)

Free testosterone · libido (male)

MODERATE EVIDENCEVEGANREAD THE RESEARCH
Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Last reviewed: May 30, 2026
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Fenugreek: Free testosterone · libido (male). Standardized Testofen extract studied for free testosterone, sexual function, and body composition in active men. Standard dose 600 mg, taken in the morning, about $22/month. Evidence rating: moderate evidence.

What is Fenugreek?

Fenugreek (Trigonella foenum-graecum) is a culinary and medicinal herb native to the Mediterranean and Western Asia. The patented Testofen extract, standardized to 50% fenuside glycosides, has been studied in placebo-controlled trials for its effects on free testosterone, libido, sexual function, and body composition in active adult men. The proposed mechanism is inhibition of the enzymes that convert testosterone to estrogen (aromatase) and DHT (5-alpha-reductase), preserving more testosterone in its free, bioavailable form. Standard dose is 600 mg of Testofen per day for 8-12 weeks. Whole-food fenugreek seeds also have a strong evidence base for blood sugar support.

WHY IT MATTERS

Standardized Testofen extract studied for free testosterone, sexual function, and body composition in active men.

Natural food sources

Where possible, get Fenugreek from whole foods first. Common dietary sources include:

Fenugreek seeds (cooking spice)Curry spice blendsFenugreek leaves (methi)

Where to buy

Life Extension Testofen Fenugreek 600mg
RECOMMENDED
Life Extension, Fenugreek
600 mg · Morning · ~$22/month

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Common questions

What is Fenugreek?
Fenugreek (Trigonella foenum-graecum) is a culinary and medicinal herb native to the Mediterranean and Western Asia. The patented Testofen extract, standardized to 50% fenuside glycosides, has been studied in placebo-controlled trials for its effects on free testosterone, libido, sexual function, and body composition in active adult men. The proposed mechanism is inhibition of the enzymes that convert testosterone to estrogen (aromatase) and DHT (5-alpha-reductase), preserving more testosterone in its free, bioavailable form. Standard dose is 600 mg of Testofen per day for 8-12 weeks. Whole-food fenugreek seeds also have a strong evidence base for blood sugar support.
What is Fenugreek used for?
Free testosterone · libido (male). Standardized Testofen extract studied for free testosterone, sexual function, and body composition in active men.
What is the standard dose of Fenugreek?
600 mg, typically taken in the morning. Approximate cost is $22 per month.
How strong is the evidence for Fenugreek?
Moderate evidence for its primary uses. See the full study list on the research page.

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