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

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

Tested purity 99.8% High purity · 99.837%
Dose vs label +12.8% Over the labeled dose
Evidence Source archived
Test date
2026-02-07
Testing lab
Freedom Diagnostics
Batch / lot
TZ13335
Quantity
45.12 mg
label 40mg · tested 45.12 mg
Endotoxins
Assay method
HPLC + MS
Label dose
40mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.84% ranks higher than 53% of the 7304 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-02-07 by Freedom Diagnostics via HPLC + MS. This test is newer than 61% 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
40mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:4a16805bf9714f70… — immutable copy held by TitrateLab

Download the saved PDF (sha256 4a16805bf971…)
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 →