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Skin hydration results of the elderly group by corneometer. (A) dry skin, placebo; (B) dry skin, 100 mg/day; (C) dry skin, 200 mg/day; (D) oily skin, placebo; (E) oily skin, 100 mg/day; (F) oily skin, 200 mg/day; (G) normal skin, placebo; (H) normal skin, 100 mg/day; (I) normal skin, 200 mg/day. Compared to 0 week * p < 0.05, ** p < 0.01.
