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

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

Tested purity 99.9% High purity · 99.9%

Dose vs label -1.9% Essentially at label

Evidence Artifact captured

Test date: 2026-05-28
Testing lab: LabE
Batch / lot: (no batch ID)
Quantity: 9.81mg
Endotoxins: low
Assay method: HPLC + mass quantification + endotoxins
Test score: 8.0
Label dose: 10mg

Context

How this result compares

This Retatrutide certificate's tested purity of 99.90% ranks higher than 70% of the 10447 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-05-28 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 77% of our catalogued Retatrutide certificates.

Zepeptide has 65 certificates in our corpus, including 34 for Retatrutide at a median tested purity of 99.80%.

Manufacturer

Zepeptide

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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: 10mg
Container: No label / Silver crimp / Black cap
Catalogued: 2026-05-31
Artifact hash: 1344e87d28d80f69…

Saved source

Saved source document

sha256:11a22b6afeb4ddc5… — 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 Zepeptide or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →