GHK Cu Focal Point Vitality GHK CU (Copper Peptide Serum) NovaNAD+ 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 GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? GHK CU 50mg Vial Copper Peptide Pure Bio Labs GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia