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

Independent test result

Retatrutide

by Ion Peptide

Purity not on file· tested September 10, 2025

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 18 tested batches of Retatrutide from Ion Peptide, measured purity averages 99.76%. Across all vendors, Retatrutide averages 99.70% over 356 COAs.

97.9% 100.0%
Vendor avg (18 batches) 99.76% Peptide avg (356 COAs) 99.70%
Compare pricing

See Retatrutide pricing across 46 verified vendors

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