bpc 157 used for BPC-157: Miracle Healing Peptide or Hidden Danger? BPC-157 | Reviews, Clinical Trials,
Description
(2000) Evidence for the role of megalin in renal uptake of transthyretin

Obviously, it may be unclear which one of the parts of peptide + carrier complex would be responsible for the activity (for review, see Urist, 1996)

How does peptide synthesis affect what diluent I should use
The injectable formulation is designed to quickly replenish Vitamin B12 levels, essential for nerve function, DNA synthesis, and red blood cell formation