The present invention relates to a water-in-oil system, which comprises 1,5-9 wt.% of hydrophobic silica, 0,1-5 wt.% of a water-in-oil emulsifier, 10-40 wt.% of an oil phase, with the content of the oil phase not including the hydrophobic silica and water-in-oil emulsifier therein, and 55-85 wt.% of a water phase with the proviso that said hydrophobic silica is not AEROSIL® RY200 hydrophobic fumed silica, and it is excluded the formulation comprising the components of: polyoxyalkylene modified polysiloxane SH3775E, a compound of the following formula (I) and hydrophobic fumed silica AEROSIL® R812, in which the weight ratio of SH3775E to the compound of formula (I) is 0,5, and the weight ratio of the sum of SH3775E and the compound of formula (I) to hydrophobic fumed silica AEROSIL® R812 is also 0,5. The weight ratio of the hydrophobic silica to the oil-in-water emulsifier is preferably in a range between 0,7α to 1,2α, in which α is the optimum ratio of the hydrophobic silica to the oil-in-water emulsifier. The present invention also relates to the preparation of this oil-in-water emulsion system. This emulsion system has good "water-releasing effects", and can be widely used in the cosmetic industry
