This product contains natural plant extracts. Quercetin is found naturally in onions and red wine. Bromelain is a proteolytic enzyme found in pineapples. Zinc is a natural antioxidant and is a component of over 300 enzymes and proteins. Directions: Adults should take one capsule before food three times a day with water. Do not exceed the recommended intake. Do not use as a substitute for a varied diet. Not recommended for children and pregnant or lactating mothers without first seeking the advice of a professional. If you are taking any medicinal product always consult with your health practitioner before taking any supplements. These capsules are free from wheat, dairy, yeast, gluten and contain no artificial colours, preservatives or sugar.