Drew Timmermans, ND, RMSK There's a lot of confusion about the difference between BPC 157 arginate and acetate forms, so let's clear that up. The key distinction Instagram BPC 157 has already hit the mainstream, but should it hit your bloodstream? BPC 157 PURE Shop for BPC 157 Peptides Integrative Peptides BPC 157 (acetate) (GEPPPGKPADDAGLV, Gly Glu Pro Pro Pro Gly Lys Pro Ala Asp Asp Ala Gly Leu Val, CAS Number: 1628202 19 6) Cayman Chemical