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

Tirzepatide 98.8% Purity — Zzq PeptidesCertificate of Analysis · Independent third-party lab result

Tested purity 98.8% Acceptable purity · 98.75%
Dose vs label +2.5% Essentially at label
Evidence Artifact captured Trust: medium
AI summary Third-party lab

LabE tested this tirzepatide batch at 98.75% purity using HPLC and mass quantification. The quantity was 2.5% above the labeled amount. Endotoxin status is not applicable for this test type. The test is recent (under 3 months old). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • no batch ID
Test date
2026-03-04
Testing lab
LabE
Batch / lot
(no batch ID)
Quantity
20.5mg
label 20mg · tested 20.5mg
Endotoxins
Assay method
HPLC + mass quantification + endotoxins
Test score
5.8
Label dose
20mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 98.75% ranks higher than 3% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-03-04 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 69% of our catalogued Tirzepatide certificates.

Zzq Peptides has 57 certificates in our corpus, including 21 for Tirzepatide at a median tested purity of 99.55%.

Manufacturer
Zzq Peptides
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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.

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Method
HPLC + mass quantification + endotoxins
Test type
finnrick_composite
Dose
20mg
Container
No Label / Silver Crimp / Black Cap
Catalogued
2026-04-16
Artifact hash
5b5f43b5bb5724f2…
Saved source

Saved source document

sha256:ab5da8fb46c21d18… — immutable copy held by TitrateLab

Related

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