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

Independent test result

Tirzeppatide

by Reta One Labs· batch TR300626

99.96 %

measured purity· May 13, 2026

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How this batch compares

This batch measured 99.96%, 0.11 pts above Reta One Labs's average of 99.85% for this peptide over 18 batches, and 0.30 pts above the all-vendor average of 99.65% across 412 COAs from 55 vendors.

74.5% 100.0%
This batch 99.96% Vendor avg (18 batches) 99.85% Peptide avg (412 COAs) 99.65%
Compare pricing

See Tirzeppatide pricing across 55 verified vendors

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