That peptide reaction youre panicking about? , Red welts. Itching. Flushing., In most cases, this isnt an allergic reaction its mast cell activation., Your body was already inflamed, stressed, or Ipamorelin Vs Sermorelin: Decoding The Differences In Peptide Therapies Wet Your Whistles: Alcohol Induced Flushing With Use of Topical Calcineurin Inhibitors Amitriptyline induced rosacea like rash Neurological Sciences Springer Nature Link