1. A composition comprising at least one N-acetylactosamine, at least one sialylated oligosaccharide and at least one fucosylated oligosaccharide for use in preventing and / or treating skin conditions and skin diseases, preferably atopic dermatitis .2. The composition according to the preceding paragraph, wherein N-acetylactosamine is selected from the group consisting of lacto-N-tetraose and lacto-N-neotetraose. 3. The composition according to claim 1, wherein the sialylated oligosaccharide is selected from the group comprising 3′-sialyllactose and 6′-sialyllactose, and preferably said composition includes both 3′-sialyllactose and 6′-sialyllactose, the ratio between 3 '-Sialyllactose and 6'-sialyllactose is preferably in the range from 5: 1 to 1: 2.4. The composition according to claim 1, wherein the fucosylated oligosaccharide is selected from the group consisting of 2′-fucosyl-lactose, 3-fucosyl-lactose, difucosyl-lactose, lacto-N-fucopentaose (namely, lacto-N-fucopentaose I, lacto-N-fucopentaose II, lacto-N-fucopentaose III and lacto-N-fucopentaose V), lacto-N-difucohexaose I, fucosyl-lacto-N-hexaose, difucosyl-lacto-N-hexaose I and difucosyl-lacto N-neohexaose II, and preferably the fucosylated oligosaccharide is 2′-fucosyl-lactose (2-FL) .5. A composition according to any one of the preceding paragraphs, wherein said composition further comprises at least one probiotic bacterial strain, said probiotic bacterial strain preferably representing Bifidobacteria and / or Lactobacilli. 6. The composition in accordance with any of paragraphs. 1-4, in which the specified composition for1. Композиция, включающая, по меньшей мере, один N-ацетиллактозамин, по меньшей мере, один сиалированный олигосахарид и, по меньшей мере, один фукозилированный олигосахарид для применения с целью предупреждения и/или лечения состояний кожи и заболеваний кожи, предпочтительно, атопического дерматита.2. Композиция в соответствии с предыдущим пунктом, в которой N-ацетиллактозамин выбирают
