1. A composition, notably dietary, nutraceutical, cosmetic, pharmaceutical or dermatological, including at least one unsaponifiable fraction and at least one additional compound selected from vitamin K2, fish, zooplankton or shellfish oils, notably rich in ω-3 fatty acids, such as krill oil, hyaluronic acid, polyphenols, diacerein, notably in the form of rhubarb extract, methylsulfonyl methane and S-adenosylmethionine, extracts of plants such as Harpagophytum, mangosteen and ginger, coenzyme QH and coenzyme Q10.