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

Name: Retatrutide COA — Zlz Peptide (99.9% purity)
Creator: LabE
License: https://titratelab.com/terms

Tested purity 99.9% High purity · 99.90%

Dose vs label -65.7% Under the labeled dose

Evidence Artifact captured

Test date: 2026-05-08
Testing lab: LabE
Batch / lot: (no batch ID)
Quantity: 10.3mg
Endotoxins: —
Assay method: HPLC + mass quantification + endotoxins
Test score: 4.4
Label dose: 30mg

Context

How this result compares

This Retatrutide certificate's tested purity of 99.90% ranks higher than 70% of the 9734 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-05-08 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 74% 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 as published.

Source

Finnrick

Artifact captured

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Method: HPLC + mass quantification + endotoxins
Test type: finnrick_composite
Dose: 30mg
Container: No Label / Silver Crimp / Black Cap
Catalogued: 2026-05-20
Artifact hash: e3694ce2c9457393…

Saved source

Saved source document

sha256:9d195ccd1a39a45b… — immutable copy held by TitrateLab

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Other Retatrutide certificates

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 →