CJC 1295 Ipamorelin Peptide Injections CMD Has anyone had these kind of reactions from cjc&ipa?! : r Peptides Peptide injections can sometimes cause redness or itching at the injection site, but most of the time this is not a true allergy. In the skin, we have mast cells that contain histamine. These cells Been on T for 5 weeks, all injections sites suddenly (in the past few days) became red and itchy : r ftm