| 摘要 |
A composition for peeling, comprising a compound selected from the group consisting of 5-aminolevulinic acid, derivatives thereof and salts thereof; and a method for improving the skin of human or animal, comprising: administering the compound selected from the group consisting of 5-aminolevulinic acid, derivatives thereof and salts thereof to the skin of human or animal, and carrying out peeling of the skin.
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