BPC 157 penis enlargement: What the evidence and real world experience actually show 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 Benefits, Dosage & Before After Results Examples of successful administration mechanisms for the delivery of Download Scientific Diagram People talk about BPC 157 like it's one thing. It isn't. Oral BPC 157 stays local. It survives digestion long enough to act on the GI mucosa, then clears before it reaches systemic circulation.