TOPICAL SKIN AGENT

To provide novel active ingredients that can be compounded in topical skin agents and are useful for improving skin aging and rough skin, for antipruritic, and for preventing and improving pigmentation such as spots and freckles.SOLUTION: Provided is a nerve growth factor inhibitor containing as an active ingredient yeast extract derived from Araceae Zantedeschia, or a concentrate or dry powder thereof. Provided is a topical skin agent containing as an active ingredient yeast extract derived from Araceae Zantedeschia, or a concentrate or dry powder thereof.SELECTED DRAWING: Figure 1 【課題】皮膚外用剤に配合可能であり、皮膚の老化や肌荒れ改善用、鎮痒用、及びシミ、ソバカス等の色素沈着の予防、改善用に有用な新規有効成分を提供する。【解決手段】サトイモ科（Araceae）オランダカイウ属（Zantedeschia）のオランダカイウ由来の酵母抽出物、或いはその濃縮物又は乾燥粉末を有効成分とする神経成長因子抑制剤。サトイモ科（Araceae）オランダカイウ属（Zantedeschia）のオランダカイウ由来の酵母抽出物、或いはその濃縮物又は乾燥粉末を有効成分とする皮膚外用剤。【選択図】図１