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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 16,
  • Issue 1,
  • pp. 36-41
  • (2012)

A Study of the Optical Properties of Cosmetics Measured by Polarized Light Goniophotometry

Open Access Open Access

Abstract

Polymethylmethacrylate powders are commonly used to improve the spreadability and blurring effects of powder foundation cosmetics. In this study, the opacity and haze effect of four types of polymethylmethacrylate powders and their 10wt% powder foundation formulation was evaluated. The distorted random hemispherical particulates with both concave and convex portions showed the highest haze and opacity value as a single powder substance. And as a formulated phase, the powder foundation formulation containing particulates with fine pores provided the highest haze and opacity value. We also examined the quantity of reflected light over the angular range 20-75° by polarized light goniophotometry. The total reflected light intensity, surface-reflected light, and internally reflected light were characterized. These studies demonstrated that hemispherical PMMA powders produce natural brilliance by creating high internally reflected light which is similar to the total reflection profile of artificial skin.

© 2012 Optical Society of Korea

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