People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian How Long Does BPC 157 Take to Work? Timeline and Guide Peptides BPC 157 promise to help heal and recover you from injuries and tough workouts (and do way more than that sometimes too!). But theres limited research into their effectiveness. So how do you They Call It the 'Wolverine Peptide.' And Everyone from Biohackers to Your Dad Wants It Now.