GHK CU Research Peptide Alpha Carbon Labs Peptide Injection Reactions: Why Redness and Lumps Happen (And How to Fix Them) PSA] Finally, a Dr. explains the mechanism behind the "copper uglies" : r SkincareAddiction PSA] Albeit rare Copper peptide "uglies" are real and scary. Case report and looking for advices : r SkincareAddiction Glow Peptide Injection: Revolutionizing Skin Rejuvenation Hubmed 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