Xylitol is a sugar alcohol that occurs naturally in various berries, corn, oats and mushrooms. In the field of skin care cosmetics xylitol is used for its moisture-binding properties among others, frequently in combination with hyaluronic acid. It is assumed that xylitol improves the natural skin barrier and simultaneously increases the synthesis of ceramide – a moisturizing compound – in the skin. Xylitol is a component of Aquaxyl®.