GHK Cu Peptide Therapy: Anti Aging & Skin Rejuvenation Desert Mobile Medical Desert Mobile Medical, PLC 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 What Are GHK Cu Peptides for Skin and Hair Health? Why Does GHK Cu Burn When You Inject It? (And How to Fix It)