is ghk-cu naturally occurring in the body Peptides Before and After: Dosage, Benefits & How It Works for Skin and Hair Rejuvenate Your Skin and Hair
Description
doi: 10.1016/S1071-9164(96)80079-0

Science 280 , 596599 (1998)

And it's ingredient list is geared towards anti-aging more than addressing acne directly

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