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

Tirzepatide 98.7% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 98.7% Acceptable purity · 98.69%
Dose vs label +8.7% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

LabE tested this tirzepatide batch (RT30202601) at 98.69% purity via HPLC and mass quantification. The tested quantity was 32.6mg, an 8.7% deviation from the 30mg label. Endotoxin status is not applicable, and the test is recent (3-6 months old). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • quantity deviation (8.7%)
Test date
2026-02-02
Testing lab
LabE
Batch / lot
RT30202601
Quantity
32.6mg
label 30mg · tested 32.6mg
Endotoxins
Assay method
HPLC + mass quantification + endotoxins
Test score
6.5
Label dose
30mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 98.69% ranks higher than 3% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-02-02 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 59% of our catalogued Tirzepatide certificates.

Zlz Peptide has 274 certificates in our corpus, including 94 for Tirzepatide at a median tested purity of 99.80%.

Manufacturer
Zlz Peptide
View vendor profile
Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Finnrick

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.

Verify on the upstream lab
Method
HPLC + mass quantification + endotoxins
Test type
finnrick_composite
Dose
30mg
Container
White Label / Silver Crimp / Green Cap
Catalogued
2026-04-16
Artifact hash
9c38c2caec65fdb9…
Saved source

Saved source document

sha256:887676cdfeb87339… — immutable copy held by TitrateLab

Related

Other Tirzepatide certificates

All Tirzepatide results & stats
This certificate is part of TitrateLab's community-trust corpus. See more from Zlz Peptide or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →