Copper Tripeptide 1 (GHK Cu): The Premier Anti Aging Ingredient for Skincare Formulators Titan Biotech Ltd. Does GHK Cu actually ruin other peptides or is that just bad formulation? Most stacks miss the mark when it comes to stability, but KLOW was designed differently. From pH optimization to independent Radiesse GHK CU This is what it looks like when Biostimulators and Peptides work together! Radiesse + GHK CU work beneath the surface to rebuild your skinboosting collagen, improving texture, restoring natural volume, 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 Doctor Reacts to Most Powerful Peptide Stacks (GLOW, KLOW & Wolverine)