Depending on why your doctor has prescribed B12 shots, these may or may not be covered by your insurance plan
They may also exist on their own, like pollen or food particles
In humans, EGCG exerts anti-obesity effects through ghrelin secretion inhibition, adiponectin levels increase, appetite control, nutrient absorption decrease, and adipogenesis inhibition
AOD-9604 is only the small C-terminal 176-191 fragment, so it lacks those receptor-binding regions and, in research models, does not reproduce growth hormone's growth-promoting or glucose-affecting actions it is studied specifically for the lipid-metabolism activity mapped to this fragment
As a water-soluble vitamin, any excesses the body does not need are simply excreted in the urine