GHK-Cu is a peptide the skin makes naturally that is involved in tissue repair and regeneration 3 Levels naturally decline with age, impacting skin repair, firmness, and collagen production 1 2 Replenishing GHK-Cu has shown to help improve the appearance of fine lines, skin density, texture, and overall tone 1 4 Available in two clinical grade formulation strengths, a 0.5% cream for those starting out and 3% cream for those seeking enhanced results
Rare but serious risks include allergic reactions (including anaphylaxis in very rare cases), liver stress with prolonged high-dose use, and excessive skin lightening with unregulated dosing
Mehdizadeh A, Somi MH, Darabi M, Farajnia S, Akbarzadeh A, Montazersaheb S, et al
Does the seller provide Certificates of Analysis (COA) from third-party labs
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There is anecdotal but not clinical evidence for this