GHK CU Peptides Direct Health Shop : . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your Zinc Thymulin GHK Cu Topical Hair Growth Product Infiniwell Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides GHK Cu Copper Peptide Hair Tonic for Fuller Looking Hair 12 Week Supply (30 mL) Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density.