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How Long Does Semenax Take to Work? Results Timeline
WellnessChecked Editorial · October 2026
How Long Does Semenax Take to Work? Results Timeline
How long Semenax takes to work: its one company-funded trial measured semen volume after two months. There's no reliable data on earlier changes. Here's what it found.
⚡ Quick AnswerLast Reviewed: October 2026
Semenax has one placebo-controlled trial, funded by its maker, in which 63 men were analyzed after two months of 4 capsules twice daily. Average ejaculate volume rose from 2.49 to 2.97 ml on Semenax and fell slightly on placebo. There's no reliable data on earlier changes, and sperm count, motility, sexual function and orgasm quality didn't differ significantly from placebo. The guarantee asks you to try it for 60 days, with returns due back within 67 days of delivery.
What the Trial Measured, and When
Weeks 1–4: No reliable data. The trial didn't measure early effects.
Month 2: When the trial measured results. Average volume rose about 0.5 ml on Semenax and fell slightly on placebo; 50% of men on Semenax versus 16% on placebo had a volume increase of 20% or more. The benefit was significant in men who already had normal volume, but not in men with low volume (under 2 ml).
Beyond 2 months: No published data.
About the Trial
The trial (MacKay et al., 2022) was run in 2011–2012 in India, funded by the maker, and its lead author was affiliated with the company. It was small, isn't indexed on PubMed and hasn't been repeated independently. It isn't the Elist 2006 study sometimes quoted for Semenax, which tested a different pollen extract for chronic prostatitis. Our article Is Semenax legit? looks at the company and the trial.
How the Guarantee Fits
The 67-day window wasn't set by the trial. You're asked to try Semenax for 60 days, and the empty containers (the first two opened plus any unopened) must be received at the warehouse within 67 days of delivery. Shipping isn't refunded and it's one refund per customer, for orders through the company.
Cautions
L-arginine may lower blood pressure, so check with a doctor if you take nitrates, ED drugs or blood pressure medicines. L-arginine and vitamin E may raise bleeding risk with blood thinners. Avoid it if you have a pollen allergy. Counterfeits have been found, so buy direct. See our article on Semenax side effects.
Its one trial measured results at two months and found a modest average increase in ejaculate volume (about 0.5 ml) compared with placebo, mainly in men who already had normal volume. There's no reliable data on earlier changes.
There's no evidence that it does. The trial measured results only after two months of daily use.
Try it for 60 days; the empty containers (the first two opened plus any unopened) must be received at the warehouse within 67 days of delivery. Shipping isn't refunded and it's one refund per customer, for orders through the company.
The trial used 4 capsules twice daily for two months, so daily use is what was tested. Check with your doctor first if you take nitrates, ED drugs, blood pressure medicines or blood thinners.
Semenax has one small, company-funded trial showing a modest volume increase. Volume Pills has no published human evidence that it increases semen volume, and its doses aren't disclosed.
Disclaimer: For informational purposes only. All products are dietary supplements — not medicines. Not intended to diagnose, treat, cure or prevent any disease. These statements have not been evaluated by the FDA. Individual results may vary. Always consult a qualified healthcare professional. We earn affiliate commissions via links on this page. Full disclaimer →
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