Copper Peptide Hair Growth Treatment GHK cu, AHK cu, Licorice Root Extract, Ginseng Root Extact Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum Copper Peptide Hair Growth Serum AHK Cu & GHK Cu + Licorice Peptide Labz 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 AHK Cu Copper Peptide Hair Growth Study (2007) Plain Language Summary Hairgenetix Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum