Research has studied GHK-Cu for its ability to stimulate hair follicle size, increase hair growth signals, and support the vascularization of scalp tissue that healthy hair growth requires
However, caution is warranted here
Impellizzeri D, Talero E, Siracusa R, Alcaide A, Cordaro M, Maria, Zubelia J, Bruschetta G, Crupi R, Esposito E, Cuzzocrea S, Motilva V (2015) Protective effect of polyphenols in an inflammatory process associated with experimental pulmonary fibrosis in mice
You'll see where each method wins and where it falls short
What type of processing has it undergone