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

Independent test result

PT-141

by Modern Research Peptides· batch EMPC261-02

99.85 %

measured purity· March 17, 2026

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How this batch compares

This batch measured 99.85%, 0.07 pts below Modern Research Peptides's average of 99.92% for this peptide over 3 batches, and 0.13 pts above the all-vendor average of 99.72% across 137 COAs from 42 vendors.

98.8% 100.0%
This batch 99.85% Vendor avg (3 batches) 99.92% Peptide avg (137 COAs) 99.72%
Compare pricing

See PT-141 pricing across 42 verified vendors

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