bpc 157 intestinal permeability tight junction study vs Leaky Gut: Science Explained Gut permeability and mucosal inflammation:
Description
Many patients who had been getting physician-supervised, quality-tested peptides from licensed pharmacies lost that access overnight

Meyer K, Gassoumis Z, Wilber K

Peptides work best as adjuncts to comprehensive healing protocols rather than replacements for established treatments

276 , G789G794 (1999)
