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Independent test result

Tirzepatide

by Cocer Peptides· batch CS-ze30-0108

99.83 %

measured purity(HPLC)· January 13, 2026

HPLC purity
99.825
Net peptide content
33.17

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How this batch compares

This batch measured 99.83%, 0.07 pts above Cocer Peptides's average of 99.76% for this peptide over 2 batches, and 0.17 pts above the all-vendor average of 99.65% across 412 COAs from 55 vendors.

74.5% 100.0%
This batch 99.83% Vendor avg (2 batches) 99.76% Peptide avg (412 COAs) 99.65%
Compare pricing

See Tirzepatide pricing across 55 verified vendors

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