Lutein’s benefits for eye and skin health are based in part on lutein’s antioxidant properties that provide protective effects against blue light. Lutein, present in the eye’s macula and lens, and also found in the skin, filters high-energy blue wavelengths of visible light from both natural sunlight and indoor light. Lutein also quenches free radicals that may lead to oxidative stress that can damage cells in these tissues. Studies indicate that daily intakes of 6 mg to 10 mg are beneficial for promoting eye and skin health.