ghk-cu hair growth study human ghk-cu human studies hair growth
Description
If you have a known copper allergy (sometimes identified through reactions to copper jewelry), patch test any GHK-Cu product on your inner forearm for 48 hours before applying it to your face
References 1 Smith AD, Refsum H
Can sensitive skin use copper peptides
Typical Study Length: 48 week experimental cycles are often used to evaluate short-term neurocognitive and neuroregulatory outcomes
