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The cosmetics industry has recently become interested in adding active constituentsthat contain natural plant extracts to cosmetic creams to improve the signs of skin aging. This study investigated the physicochemical and morphological stability of five basiccreams containing Curcumae longae Radix extract. The creams were prepared from onebasic recipe by adding five different concentrations of C. longae Radix extract. The basiccreams that were formed with W/O have excellent water resistance and durability. Thestability of the particles size in the creams was densely 3.5 ㎛ by polarized opticalmicroscope and ELS-800. Also, the change of pH in the creams showed no significantchange over several days(1, 7, 14, 28, 40 days). After exposing the creams to an artificiallamp test(30 min, 1, 3, 6, 10 h) to sunlight(7, 14, 40 days) and to various temperatures(0℃, 24℃, 40℃). there were no significant differences in flavor, acidity, rancidity anddiscoloration. Thus, it is expected that C. longae Radix extract will be a very usefuladditive to cosmetics for improving skin aging.

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