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Evidence is promising but pre-clinical
Topical application aims to restore that signaling activity at the skin level
Antioxidant protection: GHK-Cu peptides neutralize harmful molecules that can age skin prematurely
Storage rules that apply to both: - 2 to 8 C refrigeration for unreconstituted product
It acts on melanocortin receptors in the brain, a different mechanism from PDE5 inhibitors like sildenafil, which work on blood flow
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