The present invention relates to organosilicon polymers containing benzoic acid esters in form of particles, process for their preparation, cosmetic or dermatological composition comprising them, as well as their use for protecting a human or animal living body from UV radiation.本發明係關於粒子形式之含有苯甲酸酯之有機矽聚合物、其製備方法、包含其之化妝或皮膚用組成物、以及其保護人類或動物生物體免於UV輻射之用途。