All Retatrutide Certificate of Analysis results— 9827 COAs
TitrateLab · Certificate of Analysis

Retatrutide 99.2% Purity — Zhejiang Yichenkang BiotechnologyCertificate of Analysis · Independent third-party lab result

Tested purity 99.2% High purity · 99.16%
Dose vs label -19.8% Under the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

LabE tested this retatrutide at 99.16% purity via HPLC. The tested quantity was significantly under-dosed at 4.01mg against a 5mg label claim, representing a -19.8% deviation. Endotoxin status is not applicable. The test is older (6-12 months) and lacks a specific batch ID.

Watch out for
  • under-dosed (-19.8%)
  • older (6-12 months)
  • no batch ID
Test date
2025-06-11
Testing lab
LabE
Batch / lot
(no batch ID)
Quantity
4.01mg
label 5mg · tested 4.01mg
Endotoxins
Assay method
HPLC + mass quantification + endotoxins
Test score
3.3
Label dose
5mg
Context

How this result compares

This Retatrutide certificate's tested purity of 99.16% ranks higher than 6% of the 9822 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2025-06-11 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 6% of our catalogued Retatrutide certificates.

Zhejiang Yichenkang Biotechnology has 58 certificates in our corpus, including 12 for Retatrutide at a median tested purity of 99.67%.

Manufacturer
Zhejiang Yichenkang Biotechnology
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Finnrick

Artifact captured

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Method
HPLC + mass quantification + endotoxins
Test type
finnrick_composite
Dose
5mg
Container
(no data)
Catalogued
2026-04-16
Artifact hash
d0186b76dc48c706…
Saved source

Saved source document

sha256:ad96d2e64a3ed2b0… — immutable copy held by TitrateLab

Related

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This certificate is part of TitrateLab's community-trust corpus. See more from Zhejiang Yichenkang Biotechnology or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →