Dietary supplement with vitamin C, vitamin D3, prebiotics, and rutin. vitamin c and vitamin d contribute to the normal function of the immune system, vitamin c is a water-soluble vitamin and one of the most important vitamins for the human body as it increases the absorption of iron and contributes to: maintaining the normal function of the immune system during and after intense physical exercise in the normal formation of collagen for the normal function of blood vessels, bones, cartilage, gums, teeth and skin in the normal function of metabolic processes aimed at energy production in the normal function of the nervous and immune systems in the normal psychological function in the protection of cells from oxidative stress in the reduction of tiredness and fatigue vitamin d contributes to maintaining the normal function of muscles free of sugar, gluten and preservatives recommended use: 1 tablet per day dissolved in 200ml water