Yes Dare to find a celebrity endorsement in the enterprise, it must be powerful. The lutein endorsed by ZhangJike has been tested by netizens, and the effect is really good. Its full name is Knotland blueberry lutein ester buccal candy, and its main components are blueberry powder, lutein ester microcapsule powder, corn starch, lutein ester, medlar powder, ascorbic acid and so on. Among them, anthocyanins in blueberries can promote the regeneration of rhodopsin in retinal cells, prevent severe myopia and retinal detachment, and improve vision.