Skincare Division, Amorepacific R&D Center, Yongin, Korea.
J Cosmet Dermatol. 2019 Aug;18(4):1044-1051. doi: 10.1111/jocd.12811. Epub 2018 Nov 8.
Makeup has been shown to increase women's attractiveness, perceived femininity, and self-confidence and reduce their perceived age. Some of these results were caused by facial contrast and visible skin color. However, they did not investigate makeup benefit by focusing skin color change.
We investigated the benefit of makeup in reducing perceived age by focusing on only skin color, based on the age-related changes in several skin color parameters (mean, standard deviation, skewness, and kurtosis), and attempted to discover the indications for youthful-looking skin color.
A total of 174 Korean women aged 20-69 years participated in this study. Their digital facial images were cropped on the cheek area, standard Red green Blue data were transformed to Quasi-Lab*, and the statistical parameters of individual Quasi-Lab* data were calculated. Fourteen volunteers aged 30-45 years wore liquid-type makeup. The perceived age was assessed by 11 clinical evaluation researchers with a LCD monitor. The statistical analysis was performed using SPSS version 23.0, with a significance level of P < 0.05.
According to a multiple regression analysis, unevenness in skin color, skin lightness, and skewness in skin yellowness significantly affected the participants' perceived age; the most important factor was the unevenness in skin yellowness in Korean women. The evaluated and calculated with the regression equation perceived age were decreased after makeup was applied.
The makeup can reduce women's perceived age by correcting the skin's color, and it can show youthful skin properties such as a lighter and more homogenous color with less chroma.
化妆已被证明可以增加女性的吸引力、感知的女性气质和自信心，并降低她们的感知年龄。这些结果中的一些是由面部对比和可见肤色引起的。然而，它们并没有通过关注肤色变化来研究化妆的好处。
我们通过仅关注肤色，根据几个肤色参数（平均值、标准差、偏度和峰度）的年龄相关性变化，研究了化妆在降低感知年龄方面的好处，并试图发现使肤色看起来年轻的迹象。
共有 174 名 20-69 岁的韩国女性参与了这项研究。她们的面部数字图像被裁剪到脸颊区域，标准的红-绿-蓝数据被转换为准 Lab*，并计算了个别准 Lab*数据的统计参数。14 名年龄在 30-45 岁的志愿者涂抹了液体型化妆品。感知年龄由 11 名临床评估研究人员使用液晶显示器进行评估。统计分析使用 SPSS 版本 23.0 进行，显著性水平为 P<0.05。
根据多元回归分析，肤色不均匀、肤色亮度和肤色黄度偏度显著影响参与者的感知年龄；最重要的因素是韩国女性肤色黄度的不均匀性。应用回归方程评估和计算的感知年龄在涂抹化妆品后有所降低。
化妆可以通过纠正肤色来降低女性的感知年龄，并可以展现出更浅、更均匀、色彩更淡的年轻肤色特征。
