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In vitro work using LED photoirradiation of fibroblast cultures demonstrated that copper peptide supplementation significantly increased collagen synthesis compared to untreated controls, suggesting a synergistic interaction between GHK-Cu and cellular bioenergetic pathways

PMID: 37732782 J Chromatogr A Preparation of thiol-free amino acid plasma matrix for quantification of thiol amino acids and their oxidized forms in human plasma by UPLC-MS/MS

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d , Time-resolved kaolin intake

10.1289/EHP10255 Environ

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