bpc-157 or tb-500 for bursa inflimattion & TB-500: What You Need to Know BPC-157 & TB-500 - 10MG/20MG

You might be a good candidate if you have confirmed low B12 levels (from lab work), follow a strict vegan/vegetarian diet, have digestive issues reducing B12 absorption (e.g., after gastric surgery, or with conditions like Crohns), or experience chronic fatigue and other symptoms linked to B12 deficiency

Vitamin B12 injections are valuable to individuals who have a deficiency in this important nutrient, or have conditions that may prevent the absorption of vitamin B12, such as those with anemia or gastrointestinal disorders

Soffer says

Cyanocobalamin is a synthetic form that must be converted within the body to become active