Conclusion: Our investigation revealed that human studies evaluating the efficacy of ED-S ingredients are limited and have yielded no definitive findings of the effects on ED. Patients considering ED-S use should receive appropriate counseling, given the prevalence of disingenuous reviews and the ready availability of Food and Drug Administration-approved drug therapies. Balasubramanian A, Thirumavalavan N, Srivatsav A, et al. An Analysis of Popular Online Erectile Dysfunction Supplements. J Sex Med 2019;16:843-852.
PubMed 31036522 ↗Horny Goat Weed
People mainly take Horny Goat Weed for libido. Based on 63 first-hand reports and 3 meta-analyses & systematic reviews in the medical literature. Ranked #395 of 1,974 overall.
Of reports that state an outcome, 49% are positive.
What Horny Goat Weed does, according to users
Of the people who reported each effect, the share who said it got better.
4 more with fewer than 3 reports
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Based on these results, the presnet study suggested that icariin might possess substantial antiosteoporosis effect in ovariectomized rats. Safety studies and large randomized clinical trials are needed to further support possible clinical applications of icariin in postmenopausal women with osteoporosis.
PubMed 29208188 ↗Conclusion: Overall, 69% of ingredients in testosterone supplements and 52% of ingredients in ED supplements have published RCT evidence. Many male supplements claim to improve testosterone or ED parameters; however, there is limited evidence, which should be considered when counseling patients.
PubMed 32358510 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Tribulus Terrestris, and horny goat weed. Those will help.”
“I vaguely recall hearing of something called horny goat weed which might help, a scam?”
“I take nootropics dept TA 10%,HGW 50%, cistanche, ginseng and Tribulus”
“I've heard people have had success with horny goat weed”
“D Aspartic Acid and Horney Goat Weed might be worth a look, also DHEA.”
Top discussions (5)
- Hello. I was severely damaged by a common medication I took 6 years and 10 months ago. ↗
- My life got terribly ruined by an SSRI antidepressant I took for only about 25 days in July of 2019. Please give me something to help this I’m so desperate ↗
- Supplements for Insane libido ↗
- Viagra is CORRELATED with a decreased risk of Alzheimer's disease ↗
- My tested, tolerance resistant, heart healthy stack for mild ADHD ↗
Other options for libido
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate