Horny Goat Weed (Barrenwort) Benefits for Men: Facts vs Hype
Last updated: 2026-09-28
Quick answer
Horny goat weed (Epimedium, also called barrenwort) contains icariin, a compound studied mainly in lab and animal research for blood flow. Human evidence is limited. It is best used as part of a balanced formula, not as an 'instant' product.
What is horny goat weed?
Epimedium is a leafy plant used in traditional Chinese medicine for centuries. Its best-known compound, icariin, is the reason it appears in many men's formulas.
What research shows
- Lab and animal studies suggest icariin may support blood flow and nitric oxide.
- Good-quality human trials are few, so claims of fast effects are not supported.
- It is usually combined with other herbs rather than used alone.
Beware of 'instant' products
KKM and HSA regularly find hidden prescription drugs in products that promise fast results. Choose products with a KKM registration number starting with MAL.
Barrenwort in Nuviton
Nuviton is a KKM-registered (MAL24066122T), Halal-certified 6-herb men's supplement: Tongkat Ali (1% eurycomanone), Panax Ginseng, Cordyceps, Maca root, Tribulus and Barrenwort (Horny Goat Weed).