Growth factors and their peptide mimetics for treatment of traumatic brain injury ScienceDirect Pure science. Powerful results. Experience Pure Copper Power with Hairgenetix's Extra Strength Copper Peptide Hair Growth Serum, formulated with 10% GHK Cu and 5% AHK Cu to support hair growth where it matters most AHK Cu (Copper Tripeptide 3) Ingredient Guide Nubeean Noosa Dihexa targets neurotrophic factors like BDNF and NGF, which drive brain repair. By activating the c MET receptor, it helps cells take in nutrients and rebuildespecially in cases where recovery is slow or