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

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◆ Batch ID · GHK06✓ Verified · Pass

GHK-Cu × Growth Guys - Lab Test, February 2026

Tested Thursday, February 19, 2026 · submitted by @Frank 👑 Legend

HPLC Purity

99.81%

✓ Excellent

PeptideGHK-Cu

Brandgrowthguys.is

LabJanoshik Labs

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Test results

6 data points

Purity

99.81%

Endotoxins

Not tested

Stated qty

70 mg

Tested qty

66.9 mg

Qty match

96% of labeled · -4%

Batch ID

GHK06

Tested by

Janoshik LabsView profile →

◆ Quantity verification

70 mg→66.9 mg-4%

About this test

This independent lab analysis confirms GHK-Cu 70mg from Growth Guys at 99.814% purity. The test was conducted by Janoshik Labs on February 19, 2026, with a tested quantity of 66.90mg across multiple vials (66.90mg, 68.76mg, 69.05mg).

GHK-Cu is a copper peptide complex researched for its potential role in skin health, collagen synthesis, and tissue repair. A purity level of 99.814% 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 7I677PDRZGL6.