GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: 7% GHK CU ACCELERANT Platinum Skin Care GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Powerock Pharma GHK CU 2500mcg 60 caps. 150 000mcg