Why RFK Jr. backs peptides but questions vaccines STAT PDA IS REPLACING MY FAVORITE PEPTIDE BPC 157. , Well the FDA screwed up several peptides for a lot of us BUT We have just gotten our hands on an almost identical peptide called PDA or Pentadeca 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 Peptide BPC 157 Las Vegas Sky Health Wellness Clinic