Peptide BPC 157(HEXADECAPEPTIDE) Synthagen Synthagen PL BPC 157 Pure Peptides BPC 157 promise to help heal and recover you from injuries and tough workouts (and do way more than that sometimes too!). But there's limited research into their effectiveness. So how do BPC 157 benefits, dosage, and side effects FDA's Overreach on Compounded Peptides BPC 157 has already hit the mainstream, but should it hit your bloodstream?