Visionace is a research based formula contains 23 micronutrients including vitamins A, B2 and zinc which contribute to the maintenance of normal vision, plus Bilberry extract and Lutein Esters. It also contains a comprehensive range of vitamins, minerals and nutrients, such as copper and selenium which support the normal functioning of the immune system and thiamin (vitamin B1) which contribute to the normal function of the heart. An additional multivitamin is not required.