Copper Peptide (GHK Cu) 2% Recovery Serum 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. STOP the GHK Cu itch!, The secret to a painless GHK Cu injection? The 15 Minute Rule. , Injecting cold, acidic peptides causes mechanical and chemical stress on your cells. , To lower the sting:, If your GHK Cu or MOTS C injection leaves welts and burns like a hornet, it's usually not the peptide it's the technique. A few small tweaks can turn a sting into almost GHK Cu Peptide Benefits for Skin and Hair LIVV Natural