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KMID : 0604520200460040383
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Journal of the Society of Cosmetic Scientists of Korea
2020 Volume.46 No. 4 p.383 ~ p.390
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A Study on Factors Affecting the Effect of Blue Light Blocking in Sunscreen
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Park Soo-Jin
Kwak Byeong-Mun
Lee Mi-Gi
Bin Bum-Ho
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Abstract
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Blue light is a blue-based light existing at a wavelength between 380 and 450 nm, and it has been reported that it induces active oxygen and causes aging, and accordingly, interest in the blue light blocking effect is increasing.
In this study, the effects of the polarity of oil, viscosity of the formulation, type of emulsifier, emulsified particles, and inorganic UV blocking agents on the blue light blocking effect in UV blocking products were investigated. As a result, it was confirmed that the blue light blocking rate increased as the polarity of the oil became similar to that of the organic UV blocker, and the higher the viscosity of the formulation, the higher the blue light blocking rate.
The types of emulsifiers and emulsified particles had little effect on the blue light blocking effect, and the presence of inorganic UV blocking agents was found to be one of the factors that greatly influenced the blue light blocking rate. These results can effectively increase the efficiency of blocking blue light, and may be used in the development of blue light blocking products and formulation research in the future.
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KEYWORD
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bule light, transmissivity, polarity sunscreen, emulsion
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