can ghk-cu be used in combination with other skincare products Copper Peptide Face Cream, Firming, Elasticity & Hydration, 60g COSRX Blue Peptide GHK-Cu: Benefits
Description
Harvard T
On its own, GHK has moderate biological activity
The peptide was discovered during research on human gastric juice
Growth hormone production begins declining around age 30, with roughly 15% reduction per decade thereafter
