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With the increment of awareness of health, people now pay more and more attention to the safety of sunscreen products. Inorganic sunscreen agents, such as nano- TiO2, nano- SiO2, nano- ZnO, and nano- Al2O3 are very popular among consumers for their advantages, such as the nontoxic, the odorless, not easy to decompose, not easy to undergo metamorphism, and a good ability of resisting. Based on the...
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