The health of bones and joints depends on many factors. These include the availability and renewal of their structural proteins, but also the inflammatory state of tendons and bones, which are often severely and repeatedly stressed. Preparations based on hyaluronic acid, chondroitin sulphates, collagen and anti-inflammatory molecules allow bones, tendons and joints to be maintained at their maximum capacity, despite the passage of time and constant strain, even by those who practise sport on a daily basis.