Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 Hyperpigmentation no more? GHK Cu Users Share Their Stories Aseir Custom These are the incredible and visible results of GHK Cu phototherapy patches. No injections (that burn so bad) or nose sprays (that stings) or pills needed (affected by your digestion). Just a patch ! 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 Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now Biossance Squalane + Copper Peptide Rapid Plumping Serum