Blue Copper Peptide (GHK Cu) Guide: Anti Aging Science, Formulation & OEM 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 GlycyllhistidylllysineCu2+ rescues cigarette smokinginduced skeletal muscle dysfunction via a sirtuin 1dependent pathway Deng 2023 Journal of Cachexia, Sarcopenia and Muscle Wiley Online Library Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule Cellular quality control by the ubiquitin proteasome system and autophagy Science The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline