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Method for improving stability of photosensitive material containing skin-protecting solar filters to UV-radiation, such material per se and preparation containing thereof
Method for improving stability of photosensitive material containing skin-protecting solar filters to UV-radiation, such material per se and preparation containing thereof
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机译:改善含有皮肤保护性太阳能滤光片的光敏材料本身对紫外线辐射的稳定性的方法及其制备方法
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摘要
The invention relates to a process for improving the stability with respect to UV radiation of a photosensitive sunscreen agent, comprising the incorporation of said screening agent in a material prepared by the sol-gel route from at least one silicon alkoxide and from at least one surfactant. It is also targeted at a photostable material which comprises the combination of a photosensitive sunscreen agent and of a photostabilizing material prepared by the sol-gel route including at least one silicon alkoxide and at least one nonionic surfactant and at a cosmetic and/or dermatological composition comprising, in a cosmetically and/or dermatologically acceptable vehicle, an effective amount of a photostable material. This cosmetic and/or dermatological composition is intended mainly for protecting the skin and/or keratinous substances against ultraviolet radiation.
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