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In the only published head-to-head study, GHK-Cu supported improved collagen production in 70% of subjects versus 40% for tretinoin
Acta 1830 , 33503353 (2013)
That is not identical to detecting DSIP itself, and the distinction has never been fully resolved for this peptide
GHK-Cu helps protect your skin by: Fighting harmful molecules called free radicals Cooling down skin that's red and angry Helping make skin's natural sunscreen (melanin) work better Brings Back Your Skin's Youth As we get older, our skin starts to show signs of age
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