All Tirzepatide Certificate of Analysis results— 7380 COAs
TitrateLab · Certificate of Analysis

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

Tested purity 99.8% High purity
Dose vs label +8.2% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this tirzepatide batch (2025091031) at 99.77% purity via HPLC. The tested quantity was 32.47 mg against a 30 mg label, an 8.23% deviation. No endotoxin test was performed, and the test is older (6-12 months). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • older (6-12 months)
  • quantity deviation (8.23%)
Test date
2025-09-24
Testing lab
Janoshik
Batch / lot
[PHONE_REDACTED]
Quantity
32.47 mg
label 30 mg · tested 32.47 mg
Endotoxins
Assay method
HPLC
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.77% ranks higher than 36% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2025-09-24 by Janoshik via HPLC. This test is newer than 29% of our catalogued Tirzepatide certificates.

GYC has 282 certificates in our corpus, including 96 for Tirzepatide at a median tested purity of 99.84%.

Manufacturer
GYC
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

Artifact captured

We have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.

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Method
HPLC
Test type
purity+quantity
Catalogued
2026-04-22
Artifact hash
a3c5bb6d34898649…
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This certificate is part of TitrateLab's community-trust corpus. See more from GYC or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →