It is a dietary supplement that helps maintain eye health and mucous membranes in normal conditions. Vitamin A is essential for lactation, reproduction and the formation of steroid hormones. It is used to form the cells that line the digestive, respiratory, reproductive and urinary tracts, and in all tissue linings of the body. It is also vital for healthy skin and is a famous antioxidant. Dietary supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. They should be kept out of the reach of children and stored in a cool, dry place away from direct light.