Notably, it does not provide an exogenous hormone, but rather stimulates your physiology to produce GH, which is considered a more physiological approach than direct HGH injections
Journal of hepatology 56 , 944951, doi:10.1016/j.jhep.2011.08.018 (2012)
People with Absorption Issues : People with Crohns disease or celiac disease may not be able to absorb B12 from food, so injections are a better option
These injections may interact other medications
A study published in Circulation noted that while these reductions in muscle volume appear proportionate to the weight loss achieved, the concern remains that excessive lean mass loss could lead to sarcopenia, reduced metabolic rate, and poorer long-term outcomes
"Gastric pentadecapeptide body protection compound BPC 157 and its role in accelerating musculoskeletal soft tissue healing." Cell Tissue Res