Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density. Epivara (GHK Cu) livenaturalproducts GHK CU (Scalp Drops) Regen Doctors 2% GHK CU Copper Peptide Serum for Hair Growth and Scalp Care Seraphime Amazon.com: Neurogan GHK Cu Copper Peptide Hair & Scalp Serum 2400mg, 4% Copper Peptides Fast Absorbing, Water Based Formula for Hair Softness & Shine Cosmetic Dry Scalp Moisturizer Spray, Made in USA : Copper Peptide Hair Growth Conditioner GHK Cu for Hair Loss Hairgenetix