OBM Geriatrics The Effect of the Human Plasma Molecule GHK Cu on Stem Cell Actions and Expression of Relevant Genes GFC is prepared from the patient's blood in a closed system where platelets are activated ex vivo to release growth factors like PDGF, VEGF, EGF and IGF1, which are then injected into GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? GHK Cu (Copper Peptide) has emerged as one of the most promising regenerative peptides for hair restoration due to its ability to stimulate follicular activity, improve scalp circulation, reduce inflammation, and prolong the