7% GHK CU ACCELERANT Platinum Skin Care GHK Cu Topical Spray Wells Pharmacy Network Topical or SubQ GHK Cu? Same molecule. Very different purposes. Topical you apply it on your skin. Think of it as feeding your skin from the outside. In a 12 week study of Amazon.com: Skin Perfection GHK Cu Copper Peptide Powder 99.7% Pure DIY Copper Peptides Serum for Face and Scalp Cosmetic Grade GHK Cu 1 Gram Creates Up to 100ml for Fuller Hair and Topical GHK cu with Hyaluronic acid : r DIYaesthetics