All Retatrutide Certificate of Analysis results— 9703 COAs
TitrateLab · Certificate of Analysis

Retatrutide 99.8% Purity — Crest Peptides / www.crestpep.comCertificate of Analysis · Independent third-party lab result

Tested purity 99.8% High purity · 99.85%
Dose vs label +14.8% Over the labeled dose
Evidence Source archived
Test date
2026-06-22
Testing lab
Freedom Diagnostics
Batch / lot
258013
Quantity
11.48 mg
label 10mg · tested 11.48 mg
Endotoxins
Assay method
HPLC + MS
Label dose
10mg
Context

How this result compares

This Retatrutide certificate's tested purity of 99.85% ranks higher than 54% of the 9698 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-06-22 by Freedom Diagnostics via HPLC + MS. This test is newer than 94% of our catalogued Retatrutide certificates.

Crest Peptides / www.crestpep.com has 1 certificate in our corpus, including 1 for Retatrutide at a median tested purity of 99.85%.

Manufacturer
Crest Peptides / www.crestpep.com
View vendor profile
Source

Freedom Diagnostic

Source archived

We archived this certificate's source document — an immutable, SHA-256-fingerprinted copy held by TitrateLab (see Saved source document below). It stays verifiable even if the upstream page disappears.

Method
HPLC + MS
Test type
freedom_composite
Dose
10mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:42ef8bcc54cd9ef3… — immutable copy held by TitrateLab

Download the saved PDF (sha256 42ef8bcc54cd…)
Related

Other Retatrutide certificates

All Retatrutide results & stats
This certificate is part of TitrateLab's community-trust corpus. See more from Crest Peptides / www.crestpep.com or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →