Criticisms in the Development of High-Protection and Broad-Spectrum “Natural/Organic” Certifiable Sunscreen

Publication category: Article

Publication date: May 31, 2022

Authors: Guido Tortini, Paola Ziosi, Elena Cesa, Sonia Molesini, Erika Baldini, Daniela De Lucia, Elisa Durini, Caterina Rossi, Silvia Vertuani, Stefano Manfredini

Abstract: Attention to environmental issues has become increasingly important in recent years and also massively affects the cosmetics sector. In this context, sunscreens are questioned due to the proven or believed ecotoxicity of organic ultraviolet (UV) filters. This has pushed developers increasingly towards the use of inorganic filters, which can prove difficult to spread with low compliance. We faced the problem by proposing a rational approach based on the evaluation of the morphology of the inorganic material, as the real dimension does not often correspond to the characteristics declared by the producers because the material itself tends to aggregate. A combination of a specially selected inorganic filter is required to formulate Cosmetic Products with a Natural and Sustainable Connotation (CPCNS) standards.

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Analysing the TiO2 surface reactivity based on oxygen vacancies computed by DFT and DFTB methods

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