A comprehensive review on NIH/PMC documents that GHK-Cu cream applied twice daily for 12 weeks strongly stimulated dermal keratinocyte proliferation, increased skin thickness, improved skin hydration, increased collagen I production and improved skin elasticity in clinical study participants
M., Dini, L., Panzarini, E., & Sharifi-Rad, J
NQO1: quinone oxidoreductase 1
Visible new growth requires 8 to 16 weeks
In fact, comparing the research using GHK-Cu peptide injection vs topical routes shows that the majority of clinical studies have utilized the topical option to research the efficacy of the copper peptide for cosmetic applications
All histological sections were blindly evaluated by the same investigator