Peptide face cream for dry skin GHK Cu Intense 50 ml Mirando Nutrition GHKCu Copper Peptide Therapy Skin & Healing Regeneration GHK Cu is a naturally occurring tripeptide in human plasma. Levels average 200 ng ml at age 20 and drop to 80 ng ml by age 60 (Pickart et al., 2020). That decline tracks with Copper Peptide Firming Serum: Elasticity & Age Defying Dermaesthetics Beverly Hills Wholesale GHK Cu Copper Peptide Neck & Face Serum for your shop Faire