BPC 157 Pure Oral Spray, .85 Oz (120 sprays) Marty Ross MD Supplements BPC 157 is one of the most unique peptides naturally found in the gut and effective both orally and by injection., Oral supports gut health, while the injectable version helps with healing and BPC 157 Dosage: How to Use It to Heal Your Body BPC 157: Miracle Healing Peptide or Hidden Danger? People talk about BPC 157 like it's one thing. It isn't. Oral BPC 157 stays local. It survives digestion long enough to act on the GI mucosa, then clears before it reaches systemic circulation.