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The D-amino acid substitution preserves the spatial orientation of amino acid side chains needed for competitive binding to the FOXO4-p53 interaction surface, maintaining biological activity despite the non-natural backbone (PMID: 28340339)
Copper peptides tend to work more quietly, supporting the appearance of firmer skin over time without the peeling
doi:10.1111/bph.13496 Enebo LB, et al
Mechanism of Action: The Melanogenic Switch Melanin is produced by specialized cells called melanocytes
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