BPC 157 and TB 500 Therapy Log : r PlantarFasciitis Have you used peptides? What are your thoughts? Let me know below Peptides are short chains of amino acids that play vital roles in cellular signaling and repair throughout the body. 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 Gray Market Peptides: So Much Hype, So Little Data