PROBLEM TO BE SOLVED: To provide a humectant, a cell activator, a dermal fibroblast activator, an epidermal cell activator, a collagen production accelerator, an antioxidant, an anti-ageing agent, a beautifully whitening agent or a melanin production inhibitor widely utilized in the field of a skin preparation for external use or beverages and foods.;SOLUTION: This humectant, cell activator, dermal fibroblast activator, epidermal cell activator, collagen production accelerator, antioxidant, anti-ageing agent, beautifully whitening agent or melanin production inhibitor contains a plant of family Casuarinaceae as an active ingredient.;COPYRIGHT: (C)2008,JPO&INPIT
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