Hair cosmetic

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PROBLEM TO BE SOLVED : To provide a hair cosmetic containing a hair-beautifying active ingredient capable of radically bringing the appearance and characteristics of the hair itself to favorable states through establishing a system evaluating S100A3 protein closely involved in the differentiation process of cuticle cells.SOLUTION : The hair cosmetic includes an extract obtained from Aspalathus linearis and at least one selected from tropolone-related compounds each represented by formula (1) (wherein, Rand Rare each independently H, OH or 1-12C straight-chain or branched-chain alkyl or alkenyl).