Retatrutide 99.9% Purity — Welon Peptide SolutionsCertificate of Analysis · Independent third-party lab result

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

Tested purity 99.9% High purity · 99.9%

Dose vs label -5.0% Essentially at label

Evidence Artifact captured

Test date: 2026-04-07
Testing lab: LabE
Batch / lot: (no batch ID)
Quantity: 4.75mg
Endotoxins: below loq
Assay method: HPLC + mass quantification + endotoxins
Test score: 8.0
Label dose: 5mg

Context

How this result compares

This Retatrutide certificate's tested purity of 99.90% ranks higher than 71% of the 10911 Retatrutide certificates with a purity result we have catalogued (median 99.84%).

Tested 2026-04-07 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 58% of our catalogued Retatrutide certificates.

Welon Peptide Solutions has 44 certificates in our corpus, including 16 for Retatrutide at a median tested purity of 99.86%.

Manufacturer

Welon Peptide Solutions

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Certificate

Test report image

Certificate scan as published.

Source

Finnrick

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Method: HPLC + mass quantification + endotoxins
Test type: finnrick_composite
Dose: 5mg
Container: No Label / Silver Crimp / Green Cap
Catalogued: 2026-06-07
Artifact hash: d202b3aa366133c7…

Saved source

Saved source document

sha256:727360904ea091cb… — 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 Welon Peptide Solutions or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →