BPC 157 has already hit the mainstream, but should it hit your bloodstream? What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B And the BPC 157 TB 500 journey begins. Injection 1 of 30 into my body. Im excited to see how my body feels in the coming weeks. Was more nervous for this injection than Ive been doing flips from BPC 157: Experimental Peptide Creates Risk for Athletes