In an ex-vivo human study, a closely related copper tripeptide stimulated elongation of isolated human hair follicles and the proliferation of dermal papilla cells while reducing markers of cell death, according to PubMed (Pyo et al., 2007, DOI)
Three amino acids, namely glutamine, glycine, and cysteine form the base of it
Dysregulation of redox homeostasis leads to ROS accumulation, mitochondrial dysfunction, disrupted iron metabolism, and DNA damage, ultimately contributing to oxidative stress [168170]
The science backing this up is compelling
Bile acids and progesterone metabolites in intrahepatic cholestasis of pregnancy