How to Use a Calculator for Anti-Aging Peptides Like GHK-Cu: A Guide to Peptide Dosages for Radiant Skin
GHK-Cu, a naturally occurring copper-bound tripeptide (glycol-L-histidyl-L-lysine-copper complex), plays a key role in tissue regeneration and skin health. Found in human plasma, saliva, and urine, its levels decline significantly with age—from approximately 200 ng/mL at age 20 to about 80 ng/mL by age 60. This reduction correlates with diminished regenerative capacity, increased inflammation, and visible









