In vitro and in vivo anti-aging effects of compounds isolated from Artemisia iwayomogi

Abstract

In Korean folk medicine, Artemisia iwayomogi has largely been employed for the improvement of diabetic complications and hepatic function as well as in the treatment of female diseases and skin whitening. Accordingly, the present study sought to assess cosmeceutical activity of Artemisia iwayomogi. Through activity-guided fractionation, scopolin (AI-1), 2,4-dihydroxy-6-methoxy-acetophenone 4-O-β-D-glucoside (AI-2), scopoletin (AI-3), kaempferol-3-O-methyl ether (AI-4) and luteolin (AI-5) were isolated from ethyl acetate and water fractions of Artemisia iwayomogi. Of them, AI-4 and AI-5 exhibited strong antioxidative and whitening effects. In addition, AI-1, AI-3, AI-4, and AI-5 demonstrated considerable anti-wrinkle performances. According to results of quantitative analysis of compounds isolated from Artemisia iwayomogi, scopolin (AI-1) is a major component of Artemisia iwayomogi. Moreover, O/W type cream made by water fraction which included scopolin showed unwrinkling effect for 8 weeks when it was applied to face in an in vivo study. Specific contributions of Artemisia iwayomogi were as follows: AI-1, 1.21 mg/g; AI-2, 0.26 mg/g; AI-3, 0.38 mg/g; AI-4, 0.01 mg/g; and AI-5, 0.04 mg/g.