Abstract

Transparent-looking skin is an objective of facial makeup products. However, this effect of makeup products has not been investigated to Korean women's faces. We investigated the perception of blue light on women's faces using the blue pearl pigment. We compared colors and/or spectra of naked skin, standard makeup powder foundation (standard foundation), and test makeup powder foundations containing the blue pearl pigment 10% (w/w) (pearl foundation) or (ultramarine blue) blue pigment 0.2% (w/w) (pigment foundation) on real women's faces (n=6) using spectrophotometry and facial image analysis. A self-administered questionnaire showed facial images (n=3) with applied makeup powder foundations on computer monitor (n=35); evaluated items were blooming, transparency, smoothness, gloss, and vitality. In vivo, the pearl foundation showed significantly lower b* values (degree of yellowness) than did naked skin, and pigment foundation and the samples also showed significantly higher reflection of blue light (410-490nm) than did naked skin, standard foundation, or pigment foundation. In image analysis, the image with the pearl foundation showed significantly lower quasi-b* value. On the self-administered questionnaire, the results showed that the pearl foundation had a significantly higher grade than did naked skin, standard foundation, or pigment foundation at all evaluation items: blooming, transparency, smoothness, gloss, and vitality. Blue pearl pigment creates the perception of blue light effect, including transparency and gloss in Korean women.

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