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

Tirzepatide 99.8% Purity — Tristar PeptidesCertificate of Analysis · Independent third-party lab result

Tested purity 99.8% High purity · 99.84%
Dose vs label +11.3% Over the labeled dose
Evidence Source archived
Test date
2026-05-27
Testing lab
Freedom Diagnostics
Batch / lot
White Cap
Quantity
55.66 mg
label 50mg · tested 55.66 mg
Endotoxins
Assay method
HPLC + MS
Label dose
50mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.84% ranks higher than 54% of the 7304 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-05-27 by Freedom Diagnostics via HPLC + MS. This test is newer than 87% of our catalogued Tirzepatide certificates.

Tristar Peptides has 6 certificates in our corpus, including 3 for Tirzepatide at a median tested purity of 99.73%.

Manufacturer
Tristar 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
50mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:45ff4bdd32f2a7d5… — immutable copy held by TitrateLab

Download the saved PDF (sha256 45ff4bdd32f2…)
Related

Other Tirzepatide certificates

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