§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · FEB-2026● VERIFIED SUBMISSION · PUBLIC RECORD

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◆ Batch ID · 260218RT403✓ Verified · Pass

Tirzepatide × Certified Peptides - Lab Test, February 2026

Tested Monday, February 23, 2026 · submitted by @Frank 👑 Legend

HPLC Purity

99.80%

✓ Excellent

PeptideTirzepatide

BrandCertified Peptides

LabVanguard Laboratory

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Test results

8 data points

Purity

99.80%

Endotoxins

<5.00 EU/mg

Stated qty

30 mg

Tested qty

27.9 mg

Qty match

93% of labeled · -7%

Batch ID

260218RT403

Container

Small vial with printed label reading "Tirzepatide" / Certified Peptides branding / Purity information on label / Flip-off cap

Tested by

Vanguard LaboratoryView profile →

◆ Quantity verification

30 mg→27.9 mg-7%

About this test

This independent HPLC-UV/VIS lab test confirms Tirzepatide 30mg from Certified Peptides at >99.80% purity with an actual assay of 27.90 mg. The analysis was performed by Vanguard Laboratory and reported on February 24, 2026, under Lot Number 260218RT403.

Tirzepatide is a dual GIP/GLP-1 receptor agonist researched for its role in metabolic regulation, weight management, and glycemic control. Additional testing confirmed endotoxin levels below 5.00 EU/mg (LAL method), sterility with no growth detected (USP <71>), and non-detectable levels of heavy metals including chromium, arsenic, cadmium, lead, and mercury via ICP-MS.

The full certificate of analysis is available for download on this page.