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

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

Tested purity 99.9% High purity · 99.90%
Dose vs label +0.4% Essentially at label
Evidence Artifact captured Trust: medium
AI summary Third-party lab

LabE tested this tirzepatide batch (1/2/26) at 99.9% purity via HPLC and mass quantification. Quantity matched the label within 1%, and the test is recent (under 3 months). Endotoxin status is not applicable. Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
Test date
2026-04-28
Testing lab
LabE
Batch / lot
1/2/26
Quantity
50.2mg
label 50mg · tested 50.2mg
Endotoxins
Assay method
HPLC + mass quantification + endotoxins
Test score
10.0
Label dose
50mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.90% ranks higher than 73% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-04-28 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 79% of our catalogued Tirzepatide certificates.

Reta Peptide has 249 certificates in our corpus, including 38 for Tirzepatide at a median tested purity of 99.87%.

Manufacturer
Reta Peptide
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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
50mg
Container
No Label / Silver Crimp / Yellow Cap
Catalogued
2026-05-02
Artifact hash
917645dded839b8e…
Saved source

Saved source document

sha256:3c0e4bfb2f064075… — immutable copy held by TitrateLab

Related

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