GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? THE POWER COMBO: GHK CU + BPC 157 = NEXT LEVEL RESULTS Here's where peptide therapy gets really interesting. GHK CU builds collagen. BPC 157 accelerates healing. But when you combine them? You get exponential results. What are the differences between topical and intravenous (IV) administration of Glycyl Histidyl Lysine Copper (GHK Cu) for skin health and wound healing in patients? GHK CU ACETATE Topical Foam Compounded GHK Cu Facial Serum Empower Pharmacy