Table 1. Formula of the test sample. All subjects were administered one capsule once per day

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