GHK Cu Peptide Before and After Results 2 weeks in on GHK Cu and the glow is REAL., Brighter complexion, More even skin tone, Less breakouts, Softer fine lines, Thicker, fuller hair, This is just the beginning. Consistency is Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 GHKCU Skin Transformation Results After 4 Weeks 2 weeks in on GHK Cu and the glow is REAL. Brighter complexion More even skin tone Less breakouts Softer fine lines Thicker, fuller hair This is just GHK Cu Peptide Before and After Results