Histamine Digestion Support: Pure Encapsulations DAO Enzyme delivers diamine oxidase from porcine kidney extract to support dietary histamine breakdown, easing overall digestive discomfort*Skin Sensitivity Relief: This gluten-free, hypoallergenic health supplement supports healthy dietary histamine levels, minimizes related skin flushing and sensitivity, and helps manage histamine intolerance symptoms*Respiratory Symptom Relief: These unflavored vegetarian capsules offer comprehensive gut health support while relieving respiratory symptoms and stomach gas so you can eat with greater confidence*Pure Quality: Made with premium ingredients sourced from trusted suppliers, our berberine capsules are carefully manufactured and tested for purity and potencyPure Difference: What we leave out matters, too; Pure Encapsulations products are free from common allergens, artificial or unnecessary ingredients, and GMOs