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Glycolic Acid 1% INDICATION Wrinkles, ageing skin, keratosis, pigmentary spots

Chemisch besteht das Molekl aus den drei Aminosuren Glycin, Histidin und Lysin

However, formulation studies often test several active ingredients together, making it difficult to attribute the result to one peptide.[2] A 2026 systematic review and meta-analysis of oral and topical peptides, covering 19 randomised controlled trials and 1,341 participants, found that peptides significantly improved skin hydration and brightness, with a modest pooled effect on wrinkle reduction (mean difference 0.27, p = 0.04)

GHK-Cu, the most sensitive of the four peptides