GHK CU 100mg Cellgenic Peptide Therapy for Hair Growth: Does It Really Work? IK Clinics Peptide Therapy in Brandon & Lakeland, FL BPC 157, TB 500 & GHK Cu Amazon.com: QUBIT GHK Cu Copper Peptide Supplement for Skin & Hair, Easy to Absorb, Precisely Dosed 90 Vegan Capsules : Health & Household Most people think GHK Cu works because it's a skin peptide. That's surface level thinking. #GHK Cu doesn't start with wrinkles, scars, or hairlines. It starts with cellular repair signalling. GHK Cu is a copper peptide