GHK Cu Copper Peptide Shampoo Ion Peptide Week 1 GHK Cu scalp protocol. Noticed subtle changes in hair texture and appearance already. Tracking progression weekly. #GHKCu #HairGrowthJourney #ScalpHealth #Biohacking #hairexperiment GHK Cu (copper peptide)based shampoo & conditioner Started: December 8, 2025 Follow up photo: January 8, 2026 Measured under the same conditions using a tape measure, this shows approximately ~1 inch of length change Copper Peptide Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience If you've been seeing copper peptides everywhere lately this is the one they're usually talking about. GHK Cu has been studied for its role in skin recovery and follicle support, which is