All Tirzepatide Certificate of Analysis results(7,680 COAs)
TitrateLab · Certificate of Analysis

Tirzepatide 99.8% Purity — Uther PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.8% High purity
Dose vs label +15.7% Over the labeled dose
Evidence URL referenced Trust: medium
AI summary Third-party lab

Janoshik tested this tirzepatide batch ('Black cap black crimp') at 99.806% purity. The tested quantity was 34.72mg, a significant deviation of +15.73% from the 30mg label. Endotoxin status and test method are unknown. The test is older (6-12 months). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • stale (6-12 months)
  • significant quantity deviation
Test date
2025-09-20
Testing lab
Janoshik
Batch / lot
Black cap black crimp
Quantity
34.72mg
label 30mg · tested 34.72mg
Endotoxins
Assay method
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.81% ranks higher than 46% of the 7677 Tirzepatide certificates with a purity result we have catalogued (median 99.83%).

Tested 2025-09-20 by Janoshik. This test is newer than 28% of our catalogued Tirzepatide certificates.

Uther Peptide has 527 certificates in our corpus, including 66 for Tirzepatide at a median tested purity of 99.86%.

Manufacturer
Uther Peptide
View vendor profile
Source

Third-party community lab

URL referenced

This entry references an upstream lab URL we crawled. We did not save the artifact, so we can't prove the report still loads as it did when we catalogued it.

Catalogued
2026-04-24
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This certificate is part of TitrateLab's community-trust corpus. See more from Uther Peptide or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →