bpc 157 uses in regenerative medicine Regeneration or Risk? A Narrative Review of BPC-157 for Musculoskeletal Healing BPC-157: What Research Shows (and
Description
Over-the-counter lidocaine cream (4-5%) applied to the injection site 30-60 minutes before injection effectively numbs the skin
What is Integrated Peptides BPC-157

Danese S, Semeraro S, Marini M, et al

In the first article, plain lidocaine injections had no effect so it would seem, the B12 was the useful agent in the second study