Features and benefitsCapsule form for ease of swallowing.Convenient one-a-day dosage.Additional informationVitamin A is essential for vision (especially night vision), healthy skin function and repair, for the maintenance of healthy mucous membranes such as the lining of the digestive and respiratory tracts, and for maintenance of a healthy immune system.Vitamin A is vital for the formation of healthy epithelial cells. Mucous membranes, skin and the lining of the digestive and respiratory tracts are all examples of epithelial tissue. These cells form a protective layer on body surfaces. Many epithelial cells produce mucus which is necessary to lubricate body surfaces and protect against invading micro-organisms.Vitamin A plays an essential role in protecting the body from infection. It helps keep body surfaces healthy so they can act as barriers to invading micro-organisms. Vitamin A stimulates and enhances many immune functions including antibody response and the activity of various white blood cells such as T helper cells and phagocytes. This immune-enhancing function promotes healing of infected resistance to infection.,