For those of you that take ghk cu, why is this so bad? It's never been this bruised. But is always swollen, red, and burns like hell. I can only tolerate every other 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 Copper Peptides: Do You Really Need to Inject Them? Nubeean Noosa GHKCu Copper Peptide Therapy Skin & Healing Regeneration Injection Site Pain Genoskin