Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn Peptide GHK CU Cream Concierge MD GHK Cu injectable peptides are powerful tools for skin regeneration, recovery, and longevitybut local redness and irritation are common. Understanding why GHK Cu causes injection site reactions helps you use it more comfortably while maintaining PSA] Albeit rare Copper peptide "uglies" are real and scary. Case report and looking for advices : r SkincareAddiction Recent post responses making me question if my reactions are normal. Worried! : r Peptides