§ CERTIFICATE OF ANALYSIS · THIRD-PARTY HPLC · DEC-2025● VERIFIED SUBMISSION · PUBLIC RECORD

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◆ Batch ID · 251111GK1003✓ Verified · Pass

GHK-Cu × Certified Peptides - Lab Test, December 2025

Tested Thursday, December 18, 2025 · submitted by @Frank 👑 Legend

HPLC Purity

99.24%

✓ Excellent

PeptideGHK-Cu

BrandCertified Peptides

LabVanguard Laboratory

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Test results

8 data points

Purity

99.24%

Endotoxins

<0.05 EU/mg

Stated qty

100 mg

Tested qty

99.24 mg

Qty match

99% of labeled · -1%

Batch ID

251111GK1003

Container

Small vial with printed label reading "GHKCU" / Certified Peptides branding / Green checkmark / "100MG" / Flip-off cap

Tested by

Vanguard LaboratoryView profile →

◆ Quantity verification

100 mg→99.24 mg-1%

About this test

This independent HPLC-UV/VIS lab test confirms GHK-Cu 100mg from Certified Peptides at 99.24% purity with an actual assay of 99.24 mg. The analysis was performed by Vanguard Laboratory and reported on December 19, 2025, under Batch Number 251111GK1003.

GHK-Cu (copper peptide) is a naturally occurring tripeptide-copper complex researched for its role in skin remodeling, wound healing, collagen synthesis, and anti-inflammatory signaling. Additional testing confirmed endotoxin levels below 0.05 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.