B12 injections deliver the vitamin directly into the bloodstream, making them ideal for severe deficiency, nerve symptoms, or absorption issues
While animal-based foods like meat, eggs, and dairy are rich in B12, plant-based diets can lack this nutrient, making supplementation a common choice for vegans, vegetarians, and those with certain health conditions
Safety and Pharmacology Evaluations : Conducting preclinical toxicology, pharmacokinetic, and receptor-binding studies to characterize how AOD 9604 is handled in vivo and confirm it does not activate growth hormone-like proliferative pathways
There are also economies of scale so buying a bigger bottle of supplements will usually bring the cost down (though always check)