GHK Cu Protocols and Dosages The Peptide Report 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 GHK Cu is that feminine peptide every man should still be using if you want to age well. In this video I show the exact math and visuals for the dosage I take from a 50mg per ml vial using a standard 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 GHK CU ACETATE Topical Foam Compounded Copper Peptides GHK Cu Beef Tallow for Skin: Blue Balm Manuka Honey Face and Body Moisturizer for Mature, Dry & Sensitive Skin AliExpress 66