bpc-157 clinical studies Peptides,” BPC-157, and the Mainlining of Pseudoscientific Nonsense BPC-157 Clinical Trials Planned by
Description
It lasts longer in the body, so patients need it less often
Our B12 injections use Hydroxocobalamin, a stable form of commercially manufactured Cobalamin (Vitamin B12), which converts easily in the human body to methylcobalamin and Adenosylcobalamin

I've never tried subcutaneous but that may be a more suitable option for your daughter
Pyridoxine is categorized as pregnancy category A, meaning controlled studies have shown no risk to the fetus

"Effect of Vitamin B6, B9, and B12 Supplementation on Homocysteine Level and Cardiovascular Outcomes in Stroke Patients: A Meta-Analysis of Randomized Controlled Trials"
