why does ghk cu burn when injected GHK-CU, this audio? Because injecting feels like a constant wasp sting so it takes me about 15 seconds to pin .2 mL. I dread this shot every night for that reason. Also, it leaves me bruised, so I GHK-Cu Peptides Before and After:

The gap between the internet narrative and the published science is one of the largest in peptide research

doi:10.1371/journal.pone.0033944 Lederman RJ, Mendelsohn FO, Anderson RD, Saucedo JF, Tenaglia AN, Hermiller JB, Hillegass WB, Rocha-Singh K, Moon TE, Whitehouse MJ et al (2002) Therapeutic angiogenesis with recombinant fibroblast growth factor-2 for intermittent claudication (the TRAFFIC study): a randomised trial

Because GHK-Cu contains copper, sensitivity reactions are possible in susceptible individuals

AP-1 and Oct-1 transcription factors down-regulate the expression of the human Pit-1/GHF-1 gene

Not all human trials show significant functional improvement