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KMID : 0604520100360010047
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Journal of the Society of Cosmetic Scientists of Korea
2010 Volume.36 No. 1 p.47 ~ p.55
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Studies on the in vitro SPF Assay and Application of Cosmetic Formulation of Methoxycinnamidopropyl Polysilsesquioxane with a New UV-screening Agent
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Jung Taek-Kyu
Kim Young-Back
Yoon Tae-Jin
Yoon Kyung-Sup
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Abstract
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UV-screening agents have some adverse effects that raise consumers’ concern. The organic agents often cause irritation and may penetrate into human body while the inorganic agents raise aesthetic issues because they often turn opaque. Organic agents with high molecular weights and nano-sized inorganic agents have been developed respectively to minimize transdermal intrusion into human body and suppress turning opaque. Recently, we reported preparation of powdery UV-screening agents made of polysilsesquioxane, an organic-inorganic hybrid material. Powders would not penetrate into epidermis and organic-inorganic hybrid nature would suppress the opaqueness problem. In this study, we continued our research on this powdery polysilsesquioxane UV-screening agent, SESQUV, regarding its chemical composition, its synergic UV-screening effects when mixed with other organic agents, and its applicability in practical formulation. Results showed SESQUV was promising UV-screening agents useful in sunscreen formulation.
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KEYWORD
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polysilsesquioxane, SESQUV, methoxycinnamidopropyl polysilsesquioxane, UV screening agent, sun protection factor
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