VitalRenew Peptides for Hair Restoration!! The three main peptides for hair restoration include the following: Thymosin Beta 4 subq injection Zinc Thymulin topical GHK cu topical 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 : GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy : . Dr. Shintre breaks down what it is and why it works. ? A copper based peptide that naturally occurs in your GHK Cu Peptide: What It Does for Body Composition and Metabolic Health