All Tirzepatide Certificate of Analysis results— 7306 COAs
TitrateLab · Certificate of Analysis

Tirzepatide 100.0% Purity — Reju PeptidesCertificate of Analysis · Independent third-party lab result

Tested purity 100.0% High purity · 99.97%
Dose vs label +23.6% Over the labeled dose
Evidence Source archived
Test date
2026-05-14
Testing lab
Freedom Diagnostics
Batch / lot
GLP220-02
Quantity
24.72 mg
label 20mg · tested 24.72 mg
Endotoxins
Assay method
HPLC + MS
Label dose
20mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.97% ranks higher than 97% of the 7304 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-05-14 by Freedom Diagnostics via HPLC + MS. This test is newer than 83% of our catalogued Tirzepatide certificates.

Reju Peptides has 19 certificates in our corpus, including 2 for Tirzepatide at a median tested purity of 99.95%.

Manufacturer
Reju Peptides
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
20mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:1062c676409d67c4… — immutable copy held by TitrateLab

Download the saved PDF (sha256 1062c676409d…)
Related

Other Tirzepatide certificates

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