Synergistic formula in effervescent form for high absorption. With sweeteners from the Stevia plant. Free of sugar, preservatives and gluten. According to the official health claims of the European Food Safety Authority (EFSA), vitamin C contributes to: Normal psychological functioning. Increased iron absorption. Normal functioning of the nervous system. Cell protection against oxidative stress. Normal functioning of the immune system. Normal collagen formation for the normal functioning of blood vessels, bones, cartilage, gums, teeth and skin. Vitamin C contributes to normal collagen formation for the normal functioning of the skin. Recommended dosage 1 tablet per day dissolved in 200ml of water.