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

Tirzepatide 99.9% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.91%
Dose vs label +3.7% Essentially at label
Evidence Artifact captured Trust: medium
AI summary Third-party lab

LabE tested this tirzepatide at 99.91% purity via HPLC and mass quantification. The quantity tested was 31.1mg against a 30mg label, a deviation of 3.7%. Endotoxin status is not applicable for this test. The test is older (6-12 months) and no batch ID was provided. Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • older (6-12 months)
  • no batch ID
Test date
2025-09-04
Testing lab
LabE
Batch / lot
(no batch ID)
Quantity
31.1mg
label 30mg · tested 31.1mg
Endotoxins
Assay method
HPLC + mass quantification + endotoxins
Test score
8.0
Label dose
30mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.91% ranks higher than 80% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2025-09-04 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 27% 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
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Finnrick

Artifact captured

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Method
HPLC + mass quantification + endotoxins
Test type
finnrick_composite
Dose
30mg
Container
No Label / Ccpper Crimp / Clear Cap
Catalogued
2026-04-16
Artifact hash
13304698c4829764…
Saved source

Saved source document

sha256:8c4f1a8620323b16… — immutable copy held by TitrateLab

Related

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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 →