Swisse Ultiboost High Strength C is formulated for daily immune system health support. Offering 1000 mg of vitamin C in an easy, once-a-day dose, this formula utilises a non-acidic form (calcium ascorbate) for a stomach-friendly option. Designed to reduce the severity and duration of common cold symptoms, it also delivers antioxidants to help reduce free radicals formed in the body. Swisse Ultiboost High Strength C supports the immune system to fight illness. Take one tablet daily, during or immediately after food.