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http://dx.doi.org/10.4333/KPS.2008.38.2.087

The effect on skin deposition and moisturizing of ursolic acid in hydrogel system containing wood vinegar  

Lee, Gye-Won (Laboratory of Galenic Technology, Department of Pharmaceutical Engineering, Konyang University)
Lee, Ju-Yeon (Department of Medicinal Beauty, Konyang University)
Publication Information
Journal of Pharmaceutical Investigation / v.38, no.2, 2008 , pp. 87-92 More about this Journal
Abstract
Wood vinegar is well known as a softening agent affecting on the stratum corneum that is easy to penetrate into the skin. In this study, we prepared mixed ursolic acid hydrogel with wood vinegar(1, 2, 5%) as a penetration enhancer. The accumulation of ursolic acid in the skin from hydrogels was evaluated in vitro hairless mouse skin and skin moisturizing effect of them was evaluated using the corneometer and the tewermeter. And the role of stratum corneum as a protective barrier was evaluated as well. The hydrogels were retained about 40% of water retention capacity 2hrs and had better effect on the stripped skin than full-thickness skin. The accumulation of ursolic acid through stripped skin from hydrogels with wood vinegar was not change compared to normal skin, which indicated the action site of wood vinegar and the accumulation site of ursolic acid would be stratum corneum. From these result, we could find wood vinegar seems to be a good enhancer for active materials with anti-wrinkle and anti aging effect such as ursolic acid, and can be a developed topical delivery system maintaining excellent water retention capacity.
Keywords
Ursolic acid; Wood vinegar; Skin deposition; Moisturizing effect;
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Times Cited By KSCI : 1  (Citation Analysis)
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