Yes and most clinicians recommend it
The benzyl alcohol stops bacteria from growing in the vial after the rubber stopper is pierced, which lets the reconstituted peptide stay usable for around 56 days (about 2 months) when stored properly in the fridge
Started BPC/TB-500 and within three weeks the improvement was significant
Vitamin B12 injections offer a range of health benefits and can be particularly advantageous for individuals with B12 deficiency, pernicious anemia, or conditions that impair B12 absorption, such as gastrointestinal disorders (e.g., Crohns disease or celiac disease)
You should start to see improvements within a few days to a week, however if you do not feel the effects after 2-3 injection sessions, then it is likely that you were and are not deficient in B12
Depending on your requirements, each dose may contain 2 ml of the drug