| 摘要 |
An external preparation composition used for preventing or treating symptoms or diseases related to dermatopathy caused by dryness, UV rays and aging such as wrinkles and sags of the skin, pigmentation of the skin, skin roughness and coarse texture and skin diseases such as psoriasis, lichen, ichthyosis, keratosis, Darier's disease, pustulosis, acne, eczema and atopic dermatitis. The external preparation composition comprises at least one of acyl glucosamine derivatives represented by the following Formula (I): wherein R1, R2, R3, R4 and R5 are defined; and X is any one of groups represented by the following Formulas (A) to (C): wherein Y, n and R6 are also defined.
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