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

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

Tested purity 99.9% High purity · 99.9%

Dose vs label -1.0% Essentially at label

Evidence Artifact captured

Test date: 2026-05-08
Testing lab: LabE
Batch / lot: Nov 8, 2025
Quantity: 19.8mg
Endotoxins: —
Assay method: HPLC + mass quantification + endotoxins
Test score: 10.0
Label dose: 20mg

Context

How this result compares

This Tirzepatide certificate's tested purity of 99.90% ranks higher than 73% of the 7677 Tirzepatide 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 79% of our catalogued Tirzepatide certificates.

Reta Peptide has 262 certificates in our corpus, including 40 for Tirzepatide at a median tested purity of 99.87%.

Manufacturer

Reta Peptide

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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: 20mg
Container: White Label / Silver Crimp / Violet Cap
Catalogued: 2026-05-20
Artifact hash: 8301a0e5bf44eb58…

Saved source

Saved source document

sha256:8bf4ce0c980172ad… — immutable copy held by TitrateLab

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Other Tirzepatide certificates

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 →