Yes, but people with absorption issues (due to age, diet, or health conditions) may not get sufficient B12 from pills alone
For an intramuscular shot that goes deep into the muscle (like in the arm or buttocks), a longer, slightly thicker needle is needed to reach the target
Collagen Formation and Connective-Tissue Remodeling BPC 157 has also been studied for its effects on collagen organization and tissue remodeling
Sadly, I didn't end up using them all, but was very careful to store the remainder in a dark, cool spot (which certainly never exceeded 25 degrees Celsius), and the ampoules themselves have never been taken out of their boxes for any reason, so exposure to light won't have been an issue
The selection criterion is injury pattern: single-site, localized damage responds best to BPC-157