Copper Peptide (GHK Cu) 2% Recovery Serum 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 Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy I'll walk you through a precise DIY GHKCu serum you can prepare at home. I measure, I adjust, I protect every step tuned for peptide stability and skin absorption. Why GHKCu? GHK CU Pept!de Transdermal Patch The Glow Up , SET YOUR ALARMS! PRESALE is L I V E this Friday April 24th at 6am PST (& based on sign ups, this one might sell out ) , #thepatchmethod