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By purchasing these products, you acknowledge that they will be used exclusively within a controlled and qualified research environment
Before and After: What Results Can You Expect
For best results, apply to clean, dry skin and follow with a broad-spectrum sunscreen during daytime use
The optimal concentration for over-the-counter products typically ranges from 0.1% to 2% GHK-Cu, with many studies suggesting 0.5% as an effective sweet spot for benefits without adverse reactions
Irregularities and contamination are common
User 15 calculated a 3-month protocol and recommended a 1-month break before repeating
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