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 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 Pentadeca Arginate vs BPC 157: Benefits and Differences BPC 157 Erectile Dysfunction: What the Evidence Shows and Practical Considerations BPC 157 Benefits, Dosage & Before After Results