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 What are GHK cu (Glycyl Histidyl Lysine Copper) injections? GHK Cu + BPC 157 Research Peptide Combination Xcel Peptides The FDA just changed the rules on peptides effective April 15, 2026. BPC 157, GHK Cu, MOTS C, and TB 500 have been removed from the Category 2 restricted compounding list. Here is what Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Copper peptides explained what are the differences between copper peptides and GHK CU peptides? What they actually do for the skin in terms of repair and collagen, and what you can and cant mix