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Horny Goat Weed vs Maca for libido

Short answer: For libido, more users report improvement with Maca — 90% of 152 reports, versus 75% of 65 for Horny Goat Weed.

Horny Goat Weed has 3 meta-analyses and 0 randomized trials on PubMed; Maca has 13 and 13.

Based on 217 reports about Horny Goat Weed and 405 about Maca. Not medical advice.

Horny Goat Weed
Supplement
Maca
Supplement
Users say it helped51%helped85 reports · medium confidence53%helped190 reports · high confidence
Verdict
Mixed
Mixed
ResearchBResearch: ModerateAResearch: Strong
Meta-analyses / RCTs3 / 013 / 13
Mainly used for
Libido
% reporting improvement
75% (65)90% (152)
Mood
% reporting improvement
83% (12)83% (41)
Energy
% reporting improvement
67% (3)85% (48)
Hormones
% reporting improvement
80% (10)74% (19)
Performance
% reporting improvement
88% (8)100% (6)
Common side effectslibido loss, soreness, increased body, gynoanxiety, stomach issues, acne, headache
Typical dose reported1000 mg / 2x daily1 rounded tbsp (~9 g) / 3 days on / 2 days off, then a week off
Horny Goat Weed
Latest review 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.

J Sex Med, 2019 ↗
What a user said
“Lately I've been alternating days between black ginger and HGW and I really feel a difference in mood, libido and blood flow.”
Full Horny Goat Weed profile →
Maca
Latest review conclusion

Conclusion: The evidence from the included studies suggests unclear effects of maca on semen quality parameters in both men experiencing infertility and healthy men. However, the total number of RCTs and the total sample size were too small to draw firm conclusions.

Front Pharmacol, 2022 ↗
What a user said
“The better experiences were with gelatinized maca powder, 20g or so in a cup and my cock was hard as El Peñón de Gibraltar.”
Full Maca profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate