Wellness peptide craze: why people are injecting drugs 'not for human consumption' I had an unexpected allergic reaction to beauty peptides GHK Cu, BPC 157 & TB 500 theyre popular for skin & hair, but I got a rash hours after injection , #PeptideReaction #GHKCU #BPC157 #TB500 Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing., Alright, I need to give you an updateit's been 12 weeks since I started using GHK peptides from Transcend, and 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