A practical consequence of this coordination chemistry: any in vitro experiment that adds free GHK to cell culture medium containing serum (and therefore copper bound to albumin and other carrier proteins) is effectively delivering a mixture of free GHK and GHK-Cu, with the equilibrium dependent on copper availability
( Outside Senior Executive Editor Michael Roberts found that out the hard way.)
Elderly people who have the tendency to have damaged digestion are just one of the most vulnerable populaces
doi: 10.1016/j.cell.2019.03.032 3 AngeliJ
GHK-Cu is a naturally occurring copper-binding tripeptide studied in laboratory environments for its interaction with extracellular matrix signaling pathways, copper transport activity, and peptide-mediated gene expression models
Skin tone and pigmentation are influenced by sun exposure, hormones, inflammation, and ageing