If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection Product Question] Most effective way to deliver GHK Cu (Copper Tripeptide 1) through skin? : r SkincareAddiction GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia GHK Cu Copper Peptide Benefits, Uses & Safety Intra V 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 GLOW (BPC 157 GHK CU KPV TB500) Injections Team Wellcore