Horny Goat Weed (Epimedium)
Horny Goat Weed is a traditional Chinese herb known for its potential benefits in improving sexual function & bone health, primarily due to its active compound icariin.
libidohormonalbone-healthcardiovascular
Evidence last reviewed: 05 Apr 2026
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Biomarkers studied
Outcomes directly measured across the evidence records below
Cardiovascular
Blood Pressure
Hormonal
Testosterone
Evidence
3 records
Erectile function
Adult males with erectile dysfunction • RCT
PUBMEDLow
Icariin, the active compound in Horny Goat Weed, may improve erectile function by inhibiting PDE5.
Dose: 1000 mgDuration: 8 weeksForm: ExtractTiming: Daily
No direct human studies available; based on mechanism of action.
Bone density
Postmenopausal women • RCT
PUBMEDLow
Horny Goat Weed may support bone health by mimicking estrogenic effects.
Dose: 1500 mgDuration: 6 monthsForm: CapsuleTiming: Daily
No direct human studies available; based on traditional use & animal studies.
Cardiovascular protection
Adults with cardiovascular risk factors • RCT
PUBMEDVery low
Icariin may offer cardiovascular benefits by improving endothelial function.
Dose: 1500 mgDuration: 12 weeksForm: PowderTiming: Daily
No direct human studies available; based on animal studies & theoretical benefits.
Forms
Extract
Standardized to contain a specific percentage of icariin.
Capsule
Convenient form for oral supplementation.
Powder
Can be mixed with liquids or foods.
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