GHK Cu Youthful Skin, Healthy Cells, Vibrant You. Peptide Therapy for Pain Management and Healing Core Medical & Wellness 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: GHK Cu as a multifunctional copper peptide: synthesis routes, process engineering and emerging applications Systems Microbiology and Biomanufacturing Springer Nature Link GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B