Peptides in the Limelight: US FDA May Ease Restrictions on Several Peptides The Dermatology Digest 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 Most peptides are broken down in the stomach and not absorbed when taken orally, which is why injectable forms are often used. BPC 157 is a unique exception. Because it originates from the gut, its 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