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

Tirzepatide 99.9% Purity — RL Bioresearch LLCCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.86%
Dose vs label +17.1% Over the labeled dose
Evidence Source archived
Test date
2026-06-07
Testing lab
Freedom Diagnostics
Batch / lot
TZ20-260603
Quantity
23.41 mg
label 20mg · tested 23.41 mg
Endotoxins
Assay method
HPLC + MS
Label dose
20mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.86% ranks higher than 59% of the 7304 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2026-06-07 by Freedom Diagnostics via HPLC + MS. This test is newer than 91% of our catalogued Tirzepatide certificates.

RL Bioresearch LLC has 70 certificates in our corpus, including 15 for Tirzepatide at a median tested purity of 99.89%.

Manufacturer
RL Bioresearch LLC
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

sha256:7d88977936842abf… — immutable copy held by TitrateLab

Download the saved PDF (sha256 7d8897793684…)
Related

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This certificate is part of TitrateLab's community-trust corpus. See more from RL Bioresearch LLC or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →