Your Overall Health Underlying health conditions, such as gastrointestinal disorders (like Crohns disease, celiac disease, or atrophic gastritis) that impair nutrient absorption, or certain medications you may be taking, can influence how your body absorbs and utilizes B12
the ingredients are natural, and I have not experienced any side effects
Thymosin Beta-4 Improves Endothelial Function and Reparative Potency of Diabetic Endothelial Cells Differentiated From Patient Induced Pluripotent Stem Cells, Su L, Kong X, Loo S, Gao Y, Liu B, Su X, Dalan R, Ma J, Ye L, Stem Cell Research & Therapy, 2022 Jan 10;13(1):13
Incidentally he goes to Mexico for a week every monthHe was turned onto bp157 by one of his mexican friends who had a persistent knee injury that was better not very long after taking bp157