Vitamin C as an antioxidant is essential for the body's health and the effective functioning of the immune system. It keeps collagen, ligaments, bones, teeth and elasticity of the blood vessels. Large amounts of Vitamin C on a daily basis need antibiotics, nursing mothers and those with injured tissues as well as smokers. Vitamin C 1000mg of HealthAid contains the two most active bioflavonoids, rutin & hesperidin, known to strengthen capillaries and improve circulation. In non-acidic (buffered) stomach irritating, suitable for those suffering from peptic ulcers or sensitivity. Vitamin C 1500mg by HealthAid supplies the body with a large amount of it throughout the day and helps significantly in the treatment of colds & respiratory diseases such as asthma and bronchitis.