Solaray Serrapeptase is intended to provide nutritive support for healthy sinuses. It is a non-animal, proteolytic enzyme derived from a controlled fermentation of the bacterial strain Serratia spp. Each capsule is enteric coated, which helps it survive the stomach acid & pass into the small intestine. Directions: Use only as directed. Take one vegetarian capsule up to three times daily on an empty stomach. Store in a cool, dry place. Ingredients: Serrapeptase (Vegan Source), Hydroxypropylmethyl Cellulose Capsule, Rice Flour, Glycerol Triacetate, Maltodextrin, Magnesium Stearate (Flow Agent), Silica (Flow Agent). Allergen Free