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      Skin Safety of the UV Absorbers by Measurement Cytotoxicity High Functional Product with Water-In-Silicone System = Skin Safety of the UV Absorbers by Measurement Cytotoxicity High Functional Product with Water-In-Silicone System

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      https://www.riss.kr/link?id=A106193538

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      다국어 초록 (Multilingual Abstract)

      Consumers have recently preferred to purchase extensive UV intercepting products, which are waterproof and free from side effects on skin. Testing Cytotoxicity (in-vitro) in SK method, cell survival ratio of UV-B interceptors decreased above 0.08W/V%, and so did that of UV-A interceptors above 0.06W/V%. Also, Patch-test of inorganic UV interceptors resulted in no skin irritation ever below 10.0 and 11.25. UV interceptors in the sunlight showed yellowish discoloration in 5 to 14 days. In absorption curves, UV-B was most suitable for Octyl methoxycinnamate (OMC) and UV-A for Butyl methoxy dibenzoylmethane (BMDM). For this reason, Nylonpoly UVA/UVB the material of OMC and BMDM coated with Nylon & polyethylene, was used as the organic UV interceptor. And zinc oxide (ZnO) and titanium dioxide (TiO,) was used as inorganic UV interceptors. The appropriate mixture ratio of ZnO and TiO, was 6 to 4. 6% of ZnO, 4% of TiO, and 5% of Nylonpoly UVA/UVB were all combined with our sunscreen cream. The SPF value of in-vivo applied to a guinea pig was 34.9 and that of in-vivo was 38.5.
      Cyclomerhicone and dimethicone were used in water-in-Silicone system. Ceryl dimethi-cone and sorbitan sesquiolente were used as emulsifiers and MgSO, · 7 H<sub>2</sub>O, Mg-stearate/Mg-Al-stearate copolymer as emulsification stabilizers.
      In practical application, each SPF duration of O/’W type and W/S type containing sunscreen cream of the same content showed that W/S type of sunscreen cream was 5 times as durable as the other. This product is fit for using in swimming, climbing or skiing. This research is to minimize skin trouble caused by UV interceptors and to make one with proper softness, skin safety and UV intercepting efficiency.
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      Consumers have recently preferred to purchase extensive UV intercepting products, which are waterproof and free from side effects on skin. Testing Cytotoxicity (in-vitro) in SK method, cell survival ratio of UV-B interceptors decreased above 0.08W/V%,...

      Consumers have recently preferred to purchase extensive UV intercepting products, which are waterproof and free from side effects on skin. Testing Cytotoxicity (in-vitro) in SK method, cell survival ratio of UV-B interceptors decreased above 0.08W/V%, and so did that of UV-A interceptors above 0.06W/V%. Also, Patch-test of inorganic UV interceptors resulted in no skin irritation ever below 10.0 and 11.25. UV interceptors in the sunlight showed yellowish discoloration in 5 to 14 days. In absorption curves, UV-B was most suitable for Octyl methoxycinnamate (OMC) and UV-A for Butyl methoxy dibenzoylmethane (BMDM). For this reason, Nylonpoly UVA/UVB the material of OMC and BMDM coated with Nylon & polyethylene, was used as the organic UV interceptor. And zinc oxide (ZnO) and titanium dioxide (TiO,) was used as inorganic UV interceptors. The appropriate mixture ratio of ZnO and TiO, was 6 to 4. 6% of ZnO, 4% of TiO, and 5% of Nylonpoly UVA/UVB were all combined with our sunscreen cream. The SPF value of in-vivo applied to a guinea pig was 34.9 and that of in-vivo was 38.5.
      Cyclomerhicone and dimethicone were used in water-in-Silicone system. Ceryl dimethi-cone and sorbitan sesquiolente were used as emulsifiers and MgSO, · 7 H<sub>2</sub>O, Mg-stearate/Mg-Al-stearate copolymer as emulsification stabilizers.
      In practical application, each SPF duration of O/’W type and W/S type containing sunscreen cream of the same content showed that W/S type of sunscreen cream was 5 times as durable as the other. This product is fit for using in swimming, climbing or skiing. This research is to minimize skin trouble caused by UV interceptors and to make one with proper softness, skin safety and UV intercepting efficiency.

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