Why Are People Injecting Themselves with Peptides? The New Yorker 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: Experimental Peptide Creates Risk for Athletes People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian BPC 157: Miracle Healing Peptide or Hidden Danger?