All Retatrutide Certificate of Analysis results— 9826 COAs
TitrateLab · Certificate of Analysis

Retatrutide 99.6% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.6% High purity · 99.63%
Dose vs label +5.0% Essentially at label
Evidence Artifact captured Trust: medium
AI summary Third-party lab

LabE tested this retatrutide batch at 99.63% purity via HPLC and mass quantification. The tested quantity was 10.5mg, a 5% deviation from the 10mg label. Endotoxin status is not available. The test is older (6-12 months). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • older (6-12 months)
Test date
2025-10-23
Testing lab
LabE
Batch / lot
Unk
Quantity
10.5mg
label 10mg · tested 10.5mg
Endotoxins
Assay method
HPLC + mass quantification + endotoxins
Test score
9.3
Label dose
10mg
Context

How this result compares

This Retatrutide certificate's tested purity of 99.63% ranks higher than 22% of the 9821 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2025-10-23 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 21% of our catalogued Retatrutide certificates.

Zlz Peptide has 274 certificates in our corpus, including 100 for Retatrutide at a median tested purity of 99.84%.

Manufacturer
Zlz 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
10mg
Container
No Label / Silver Crimp / Green Cap
Catalogued
2026-04-16
Artifact hash
b13e0c462112c8fc…
Saved source

Saved source document

sha256:97c0a412b12c24c3… — immutable copy held by TitrateLab

Related

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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 →