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

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◆ Batch ID · GHK01✓ Verified · Pass

GHK-Cu × Growth Guys - Lab Test, May 2025

Tested Friday, May 23, 2025 · submitted by @Frank 👑 Legend

HPLC Purity

99.89%

✓ Excellent

PeptideGHK-Cu

Brandgrowthguys.is

LabJanoshik Labs

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Test results

6 data points

Purity

99.89%

Endotoxins

Not tested

Stated qty

60 mg

Tested qty

57.48 mg

Qty match

96% of labeled · -4%

Batch ID

GHK01

Tested by

Janoshik LabsView profile →

◆ Quantity verification

60 mg→57.48 mg-4%

About this test

This independent lab analysis confirms GHK-Cu 60mg from Growth Guys at 99.894% purity. The test was conducted by Janoshik Labs on May 23, 2025, with a tested quantity of 57.48mg across multiple vials (57.48mg, 58.26mg, 57.50mg).

GHK-Cu is a copper peptide complex researched for its potential role in skin health, collagen synthesis, and tissue repair. A purity level of 99.894% indicates high-grade synthesis with minimal impurities.

The full certificate of analysis is available for verification at www.janoshik.com/verify/ using the unique key FJGXPWWSNXV5.