Next up in our peptide highlight series is GHK Cu. If skin support, hair health, and healthy aging are part of your goals, this is one worth knowing about. GHK Cu is a copper GHK CU Peptide Anti Wrinkle Serum Private Label Options GHK Cu is one of my personal favorites for a lot of reasons, but I can say without a doubt that it's use effectively stopped and reversed, my receiving hairline. However, there are 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 :