1. Protect eyesight, prevent it from descending. Protect yellow membrane in retina, inhibit macula lutea from degeneration and blurred vision. Anti-oxidation, inhibit harmful free radical from forming. Protect retina, absorb a great quantity blue light which enters our eyes. 2. Lutein has the lower macular pigment density, cut down the incidence of cataract. 3. Anti-oxidation, inhibit the activity of active oxygen-derived free radicals.4. Inhibit artery wall from thickening and arterial embolism, cut down the oxidation of LDL cholesterol, delay arteriosclerosis.5. Antitumous effect, inhibit breast carcinoma, carcinoma of prostate, rectal cancer, skin cancer, etc.6. Superordinary natural pigment, strong tinting power, dosage low, color bright-colored.