Figure 2. Changes in the lightness (L*) and the Individual typology angles (ITAO) values after intake of the control and the test products. Trend of mean values of ΔL* and ΔITAO versus time was represented in (a) and (b). Data are presented as the means ± standard errors of the mean. *p < 0.05 versus the control group at each time point

From

Effect of Oral Intake of A Mixture Containing Natural Citrus Peel Extract, Vitamin C, and L-Cystine on Skin Brightness in Healthy Women

Jeong Kee Kim, Nok Hyun Park, Jae Sung Hwang, Ji Hoon Baek, Hyun Woo Jeong

Journal of Food and Nutrition Research. 2018, 6(10), 655-659 doi:10.12691/jfnr-6-10-6