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Both GHK-Cu HCl and GHK-Cu acetate deliver the same active copper peptide complex, and choosing between them often depends on formulation preference or application type, not necessarily performance

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In this article, the authors showed that uPAR is expressed in senescence cells, both in in vivo and in vitro models (liver fibrosis, pancreatic intraepithelial neoplasia, senescent melanocytes, or lung cancer) correlated to a lack of expression in healthy tissue, except for the bronchial epithelium and a subset of immune cells in which a weak expression of uPAR was detected

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