b12 injection location on body Vitamin Sites: All You Need to Know Best Vitamin B12 Injection Sites:

Nonetheless, your body needs gastric acid to activate certain enzyme reactions to absorb vitamin B12

Foot Ankle Clin 12:553567 Hsieh MJ, Liu HT, Wang CN, Huang HY, Lin Y, Ko YS, Wang JS, Chang VH, Pang JH (2017) Therapeutic potential of pro-angiogenic BPC157 is associated with VEGFR2 activation and up-regulation

But "briefly" means hours, not days

Further, a point related to BPC 157/NO-system relation as well, as the BPC 157 therapy might be the recovery for the disabled heart functioning (myocardial infarction [53], heart failure [87], pulmonary hypertension [88], arrhythmias [40,41,42,47,48,49,50,51,52,53,54,55,56,60,81,89,90,91], and thrombosis prevention and reversal [40,41,42,43,47,48,49,50,51,52,53,54,55,56])