All Tirzepatide Certificate of Analysis results(7,697 COAs)
TitrateLab · Certificate of Analysis
Tested vendor:Qing Li Peptide All Tirzepatide COAs & research All Tirzepatide results & stats

Tirzepatide 99.6% Purity — Qing Li PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.6% High purity · 99.6%
Dose vs label -2.6% Essentially at label
Evidence Source archived
Test date
2026-06-05
Testing lab
LabE
Batch / lot
TR 50
Quantity
48.7mg
label 50mg · tested 48.7mg
Endotoxins
—
Assay method
HPLC + mass quantification + endotoxins
Test score
9.3
Label dose
50mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.60% ranks higher than 18% of the 7694 Tirzepatide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-06-05 by LabE via HPLC + mass quantification + endotoxins. This test is newer than 86% of our catalogued Tirzepatide certificates.

Qing Li Peptide has 349 certificates in our corpus, including 49 for Tirzepatide at a median tested purity of 99.80%.

Manufacturer
Qing Li Peptide
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Source

Finnrick

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.

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Method
HPLC + mass quantification + endotoxins
Test type
finnrick_composite
Dose
50mg
Container
No label / Blue crimp / Green cap
Catalogued
2026-06-14
Saved source

Saved source document

sha256:e8406ed27f936890… — immutable copy held by TitrateLab

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Related

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Freedom Diagnostics Forbidden Fruit AT Tirzepatide
99.9% 2026-07-31
Freedom Diagnostics Crownwell Research Tirzepatide
99.9% 2026-07-31
Freedom Diagnostics Estera Labs Tirzepatide
99.5% 2026-07-30
Freedom Diagnostics EJ Solis Ventures LLC Tirzepatide
99.8% 2026-07-29
Freedom Diagnostics Delta Peps Tirzepatide
100.0% 2026-07-28
Freedom Diagnostics
All Tirzepatide results & stats
This certificate is part of TitrateLab's community-trust corpus. See more from Qing Li Peptide or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →