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

Tirzepatide 99.9% Purity — NextGen PeptidesCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.944%
Dose vs label +8.8% Over the labeled dose
Evidence Source archived
Test date
2025-12-23
Testing lab
Freedom Diagnostics
Batch / lot
Quantity
21.76 mg
label 20mg · tested 21.76 mg
Endotoxins
Assay method
HPLC + MS
Label dose
20mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.94% ranks higher than 89% of the 7304 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2025-12-23 by Freedom Diagnostics via HPLC + MS. This test is newer than 49% of our catalogued Tirzepatide certificates.

NextGen Peptides has 76 certificates in our corpus, including 13 for Tirzepatide at a median tested purity of 99.87%.

Manufacturer
NextGen 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:ad3cebf4c2d4f98d… — immutable copy held by TitrateLab

Download the saved PDF (sha256 ad3cebf4c2d4…)
Related

Other Tirzepatide certificates

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