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New prospects for an old enzyme: mammalian cytochrome c is tyrosine-phosphorylated in vivo
Collagen-stimulating peptides like GHK-Cu and Matrixyl address wrinkles through structural improvement rather than muscle effects - increasing dermal collagen synthesis by 70-80% in vitro studies, promoting organized matrix formation rather than disorganized scar-like deposition, enhancing skin thickness obscuring fine lines, and improving overall skin quality creating fresher appearance even without direct wrinkle targeting
[DOI] [PubMed] [Google Scholar] 211.Pickering, R
Yet in practice, they are packaged, dosed and marketed in ways that clearly anticipate human use
D.ManolaM
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