New Expiration Date: 2025/12 Certified health food by the Japan Health and Nutrition Food Association. Contains chitosan and chitosan oligosaccharide manufactured in our own domestic factory. Koyo Chitosan Capsules are health supplements containing chitosan, an insoluble dietary fiber, and chitosan oligosaccharide, which is expected to activate the immune system. The main ingredient, chitosan, is an animal-derived "dietary fiber" manufactured in a domestic factory using the shells of domestically caught red snow crabs as a raw material. "Dietary fiber" blocks fats and salt, and has been attracting attention for a long time due to its function of preventing the accumulation of excess substances. In recent years, due to its excellent properties, it is said to be the "sixth nutrient" following the five major nutrients consisting of carbohydrates, lipids, proteins, minerals, and vitamins, and its presence is considered important.