All Tirzepatide Certificate of Analysis results— 7380 COAs
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Tested vendor:GYC All Tirzepatide COAs & research All Tirzepatide results & stats

Tirzepatide 99.0% Purity — GYCCertificate of Analysis · Independent third-party lab result

Tested purity 99.0% Acceptable purity
Dose vs label +6.7% Over the labeled dose
Evidence Asserted only Trust: medium
AI summary Third-party lab

Peptide Test reported this GYC tirzepatide batch (GB5 pink cap G20250439) at 98.972% purity. The tested quantity was 31.998mg against a 30mg label, a deviation of 6.66%. The test is older (6-12 months), and details on the test method and endotoxin status are unknown. Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • older (6-12 months)
  • unknown purity method
Test date
2025-06-06
Testing lab
Peptide Test
Batch / lot
GB5 pink cap G20250439
Quantity
31.998mg
label 30mg · tested 31.998mg
Endotoxins
—
Assay method
—
Context

How this result compares

This Tirzepatide certificate's tested purity of 98.97% ranks higher than 4% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2025-06-06 by Peptide Test. This test is newer than 16% 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
View vendor profile
Source

Third-party community lab

Asserted only
No verifiable evidence captured. This entry was added to our corpus from Third-party community lab. We did not save the certificate image, did not hash an artifact, and the upstream URL is either a domain root or absent — we cannot independently confirm this report existed. Treat as curator-asserted only.
Catalogued
2026-04-24
Related

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Shenzhen Maide Technology Tirzepatide
99.9% 2026-07-18
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99.9% 2026-07-16
Janoshik Peptisavvy PH Tirzepatide
99.5% 2026-07-16
Janoshik [EMAIL_REDACTED] Tirzepatide
99.9% 2026-07-08
Janoshik Vital Research Tirzepatide
100.0% 2026-07-03
Freedom Diagnostics Nulevelpeptides.com Tirzepatide
100.0% 2026-07-03
Freedom Diagnostics Northern Border Health Tirzepatide
99.7% 2026-07-03
Freedom Diagnostics Elite Research Tirzepatide
100.0% 2026-07-03
Freedom Diagnostics
All Tirzepatide results & stats
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 →