Assessment of the degree of skin color change by using skin tone index
10.3760/cma.j.issn.1671-0290.2020.02.020
- VernacularTitle:应用皮肤色度指数评估皮肤颜色的变化
- Author:
Wenjuan ZHANG
1
;
Yinfeng JIANG
;
Weiguang HUA
;
Laiji MA
;
Nan LU
Author Information
1. 上海家化联合股份有限公司科研中心功效与感官研究室 200082
- From:
Chinese Journal of Medical Aesthetics and Cosmetology
2020;26(2):145-148
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To measure the skin color parameters of Chinese women with non-invasive instruments test, and to validate assessment scales (VAS) and image analysis. Skin tone index (STI) of Chinese women was created by PLS-VIP method, and then used to the overall evaluation of Chinese women skin color.Methods:The skin color scale by VAS, parameters measured by tristumulus colorimeter, narrow-band-simple reflectance meter and image analysis were administered at the cheek of 60 famle subjects. The correlations among all the parameters collected by the instruments and scales by VAS were investigated, and then the main impact factors of skin color grade were analyzed. The STI model was created by principal component analysis and further tested.Results:With b value exception, skin color score was significantly correlated with the instrument parameters. The absolute values of coefficients were from 0.6898 to 0.8648. Int, L, BS, MI and EI were the most important parameters which influenced the consumer＇s perception of skin visual color. The SWI=0.47*Int+ 0.47*L+ 0.43*BS-0.44MI-0.43EI was created by PLS-VIP. The coefficient between SWI and skin color scale was -0.834 ( P<0.0001). Conclusions:STI could be effectively and comprehensively representative of the degree of skin color change.
