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

Independent test result

Cortagen

by BioLongevity Labs

99.82 %

measured purity· March 28, 2025

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How this batch compares

This batch measured 99.82%, right at BioLongevity Labs's average of 99.81% for this peptide over 2 batches, and 0.23 pts above the all-vendor average of 99.59% across 6 COAs from 4 vendors.

99.0% 99.9%
This batch 99.82% Vendor avg (2 batches) 99.81% Peptide avg (6 COAs) 99.59%
Compare pricing

See Cortagen pricing across 4 verified vendors

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