Do you know your skin has a built in "Biological Architect"? It's called GHK Cu (Copper Tripeptide 1), and its only job is to tell your cells one thing: REBUILD. It's why your skin snaps GHK Copper Peptide GHK Cu Tripeptide 1 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 for collagen support and skin repair Same GHK Cu. Better way. Same GHK Cu copper peptide complex. Completely different experience. If you've been eyeing the pen, put it down. We made something better, and your skin barrier will thank you GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B