GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Injection Site Pain Genoskin Redness after a peptide injection can feel alarming but in most cases, its completely normal. , If youve noticed a pink or red halo at the injection site especially with peptides like GHK Cu Many people are being told to inject peptides like BPC 157, GHK Cu, or TB500 right over the area of pain, thinking it will deliver the peptide directly into the injured tissue. Thats simply not true. The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget