For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Independent test result

Semax

by Pepsgpt· batch P-1902514-E

Purity not on file· tested May 8, 2026

New to reading a COA? See how to read a peptide COA →

How this batch compares

This batch has no measured purity on file. Across all vendors, Semax averages 99.41% over 77 COAs.

97.7% 100.0%
Peptide avg (77 COAs) 99.41%
Compare pricing

See Semax pricing across 24 verified vendors

Merit's price comparison page pulls current listings so you can cross-check purity history vendor by vendor before you buy.

Keep exploring

See more evidence