bpc 157 certificate of analysis Pure BPC-157 Instamed® BPC-157 Sublingual Peptides -
Description
The NHS guidance on hydroxocobalamin and the BNF entry are the references to follow, alongside the leaflet in your pack

Ivan Krezic, Departments of Pharmacology and Pathology, Medical Faculty University of Zagreb, Zagreb 10000, Croatia

Arimoto T, Takeishi Y, Niizeki T, et al

It can also cause more pain at the injection site because muscle tissue has more nerve endings than fat