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(2) The scientists compared the potential of GHK-Cu to other peptides and vitamin C and vitamin A derivatives on photodamaged skin
More isn't always better with peptides
Peptides offer anti-inflammatory effects without global immunosuppression or catabolic tissue effects
Cell viability for GHK-Cu was previously investigated by Hairui et al, showing no significance difference between the control and the GHK-Cu treated group at the same concentrations and time points, implying the non-cytotoxic nature of GHK-Cu towards HaCaT 11
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