What is the safe topical dosing, duration, and contraindications for the copperbinding peptide GHKCu for wound healing or antiaging? GHK Cu Focal Point Vitality WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with What is the optimal dosing regimen of GHKCu for topical skincare and woundhealing applications?