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

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◆ Batch ID · GK500925✓ Verified · Pass

GHK-Cu × Reta One Labs - Lab Test, September 2025

Tested Wednesday, September 24, 2025 · submitted by @Frank 👑 Legend

HPLC Purity

99.71%

✓ Excellent

PeptideGHK-Cu

Brandretaonelabs.com

LabChromate

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Test results

8 data points

Purity

99.71%

Endotoxins

< 1.25 EU/vial

Stated qty

50 mg

Tested qty

48.03 mg

Qty match

96% of labeled · -4%

Batch ID

GK500925

Container

Lyophilized peptide vial

Tested by

ChromateView profile →

◆ Quantity verification

50 mg→48.03 mg-4%

About this test

This independent RP-HPLC lab test confirms GHK-Cu 50mg from Reta One Labs at 99.708% purity. The analysis was conducted by Chromate on September 24, 2025.

GHK-Cu is a copper peptide complex researched for collagen synthesis, skin regeneration, and connective tissue support. A purity level of 99.708% indicates minimal impurities and pharmaceutical-grade synthesis quality. Endotoxin levels measured below 1.25 EU/vial demonstrate low microbial contamination.

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