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 Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B GHK Cu Peptide Creams for Anti Aging Skin Care in Northern Virginia: A New Era of Rejuvenation Preston's Pharmacy Copper Tripeptide 1 (GHK Cu): The Premier Anti Aging Ingredient for Skincare Formulators Titan Biotech Ltd. Epitalon + GHK Cu (Anti Aging Blend) Elite Health HRT Elite Health HRT GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping