BPC 157 and Erectile Dysfunction: What the Evidence Actually Shows Frontiers Stable binding to phosphatidylserine containing membranes requires conserved arginine residues in tandem C domains of blood coagulation factor VIII BPC 157 and erectile dysfunction: what the evidence and real world experience actually show BPC 157 erectile dysfunction study: What the current evidence actually shows CRE8 Compounding Pharmacy Supplements BPC 157 (Arginate Salt) (500mcg x 60 Capsules) Liberty Peptides