Author(s)

Zhaoxia Li, Jing Li, Yao Gu, Wanze Wang, Le Sheng, Zhiming Zhang, Shanshan Zang

Corresponding Author

Zhaoxia Li

Abstract

To investigate the effects of two different application methods (combined use of toner, essence, lotion and alone use of essence) on the efficacy of whitening and anti-spot cosmetics. In this study the clinical trial was conducted to evaluate the difference of whitening, anti-spot efficacy between the combined use group and the alone use group by the spot size, density of pigmentary spots, contrast of isolated pigmentary spots, PIH (acne mark), and skin fairness. And the skin conditions were valuated by skin radiance, skin pore, skin evenness and global appearance of fine lines. The results of clinical trial showed that the improvement of spot size, density of pigmentary spots, contrast of isolated pigmentary spot, PIH (acne mark), skin fairness in combination group was significantly higher than that in alone use group. Furthermore, the two different application methods also illustrated the same trend for changes in skin conditions including skin radiance, skin pore, skin evenness and global appearance of fine lines. These foundings indicate that the whitening, anti-spot efficacy and skin conditions improvement of combined use of toner, essence and lotion was better than that of use essence alone.

Keywords

Whitening and anti-spot, Skin conditions, Clinical trial, Efficacy