The "bpc 157 vs tb 500" question rarely has a single answer in research terms, because the two are typically studied for different mechanistic questions
This occurs in conditions such as pernicious anemia, an autoimmune condition that affects the production of intrinsic factor, which is necessary for the absorption of B12 in the small intestine
BPC 157 also stimulates the growth and spread of fibroblasts, which are vital for the formation of a structural protein of your skin, bones, and connective tissue, called collagen
When B12 runs low, symptoms tend to creep in slowly enough to get blamed on something else: persistent fatigue, brain fog, low mood, weight gain or difficulty losing weight, weakness, tingling in the hands or feet, shortness of breath, and a weakened immune system