Latanoprost and Copper Peptides for Hair Growth, When we talk about topical hair growth support, two ingredients that I find interesting are latanoprost and copper peptides., Latanoprost is a Copper Peptide Hair Growth Treatment GHK cu, AHK cu, Licorice Root Extract, Ginseng Root Extact 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Mall of California