BPC 157 LIVE ALPHA LABS BPC 157: The Body Protection Compound PeRx 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 People often ask about the difference between BPC 157 arginate and acetate forms, and the answer comes down to stability and absorption. When were talking about oral BPC 157, the arginate form is far BPC 157 (acetate) CAS 1628202 19 6 Cayman Chemical Biomol.com