Are Peptides Legal in the UK? (The 2026 Researcher's Guide) Research Guide Tide Labs Tide Labs Most peptides are broken down in the stomach and not absorbed when taken orally, which is why injectable forms are often used. BPC 157 is a unique exception. Because it originates from the gut, its BPC 157: The peptide with big claims and scant evidence STAT Can BPC 157 Help with Erectile Dysfunction? BPC 157 Erectile Dysfunction Study: What the Current Research Actually Shows