Independent test result
Tirzepatide
by Qihang Peptide· batch 12
99.83 %
measured purity(HPLC)· January 15, 2026
- HPLC purity
- 99.83
- Net peptide content
- 36.43
New to reading a COA? See how to read a peptide COA →
How this batch compares
This batch measured 99.83%, right at Qihang Peptide's average of 99.80% for this peptide over 6 batches, and 0.19 pts above the all-vendor average of 99.64% across 383 COAs from 54 vendors.
74.5% 100.0%
This batch 99.83% Vendor avg (6 batches) 99.80% Peptide avg (383 COAs) 99.64%
Compare pricing
See Tirzepatide pricing across 54 verified vendors
Merit's price comparison page pulls current listings so you can cross-check purity history vendor by vendor before you buy.
From the same lot
Other tests in lot 12
Same batch, independently tested. Cross-confirm the purity claim.