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

Tirzepatide 99.7% Purity — Northwest PeptidesCertificate of Analysis · Independent third-party lab result

Tested purity 99.7% High purity · 99.653%
Dose vs label +5.4% Over the labeled dose
Evidence Source archived
Test date
2026-01-08
Testing lab
Freedom Diagnostics
Batch / lot
TR10-20260102
Quantity
10.54 mg
label 10mg · tested 10.54 mg
Endotoxins
Assay method
HPLC + MS
Label dose
10mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.65% ranks higher than 22% of the 7304 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-01-08 by Freedom Diagnostics via HPLC + MS. This test is newer than 53% of our catalogued Tirzepatide certificates.

Northwest Peptides has 69 certificates in our corpus, including 6 for Tirzepatide at a median tested purity of 99.86%.

Manufacturer
Northwest 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
10mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:8c46ca1355b45146… — immutable copy held by TitrateLab

Download the saved PDF (sha256 8c46ca1355b4…)
Related

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