best bpc 157 and tb 500 BPC-157 vs TB-500: Recovery Peptide Comparison BPC-157 and TB-500: Uses and
Description
B12 is contraindicated in Lebers Disease (a hereditary optic nerve atrophic condition), clients with chronic liver and/or kidney dysfunction, or abnormal red blood cells (megaloblastic anemia)

Laboratory interferences with the newer cyanide antidote: hydroxocobalamin

Also, it strongly counteracts corticosteroid-induced adverse effects (i.e., eventual healing failure (Klicek et al., 2008

Color changes: Persistent redness or darkening of the skin at injection sites suggests chronic irritation
