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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)

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Nevertheless, they are legally available for research only for qualified professionals

Research shows it works in healthy individuals and in those with GH deficiency

Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles Can support skin barrier function and reduce inflammation in skin One of the best moisturizing ingredients