Erythrulose is a hyaluronic acid monomer which is the basic composition unit of important organism polysaccharides. It extensively exists in the exoskeletons of shellfish and has become a new type of biochemical drugs, drug intermediates , high-end cosmetics and food additives for the important functions, such as immunity enhancement, antioxidant, keeping moisture, anti-free radicals, etc. Product Functions: 1. Erythrulose has function of treating rheumatic and rheumatoid arthritis. 2. Erythrulose can work as a food antioxidant and infant food additives. 3. Erythrulose can strengthen the function of the body's immune system, inhibit the excessive growth of cancer cells or fiber cells.