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It works more as a brightening agent to remove dullness, tan and pigmentation from your skin rather than instant tan removal

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Possible Copper Imbalance Since GHK-Cu is a copper peptide, excessive use could lead to an accumulation of copper in the body

Bacteriostatic Water 30mL Bacteriostatic Water is a sterile aqueous solution containing 0.9% benzyl alcohol as a preservative

However, more research is needed on the benefits and side effects of this treatment

This guide explains what each of these peptides actually does, why people combine them, what the law and the evidence say in the UK, and what the licensed alternatives look like in 2026