Lutein is a natural carotenoid. Despite its appearance, it is food for the eye. Lutein, also known as lutein, is an important antioxidant and is relatively common in nature. Lutein is the main pigment of the retina. It has antioxidant effect, can consume toxic light, dissolve light poisoning, protect the regeneration of rhodopsin in retinal cells, and prevent high myopia and retinal detachment. Lutein directly affects the therapeutic effect of myopia and amblyopia.

Lutein is found in the macula and lens of the retina of the eye, especially in the macula. Lutein is an important antioxidant, a member of the carotenoid family, also known as "plant lutein". Coexisting in nature with zea lutein. Scientific studies have shown that lutein is the only carotenoid found in the retina and lens of the eye, an element that the body cannot make on its own and must be replenished by external intake. Without this element, the eye goes blind. Ultraviolet (UV) and blue (blue) rays from the sun enter the eye and produce large amounts of free radicals, which can lead to cataracts, macular degeneration, and even cancer. Lutein can filter blue light, decompose the damage of strong light and ultraviolet light to the human eye, so as to avoid the damage of blue light to the eye, and prevent the visual degeneration and blindness caused by the lack of lutein. Therefore, lutein is also known as the god of eye protection.

The retina is damaged by free radicals when exposed to light and oxygen. Lutein is a powerful antioxidant that helps filter out blue light, reducing color difference and making vision more accurate. Protects the retina and ensures clear vision. Lutein is a good antioxidant that protects the retina from oxidative damage when it absorbs light. And can protect the eye microvessel, maintain good blood circulation.