PROBLEM TO BE SOLVED: To provide a plant extract containing formulation which exhibits antibacterial activity to at least causative bacteria of skin inflammation.SOLUTION: An antibacterial agent and a skin external preparation contain an extract of Truenicorn as an active ingredient.COPYRIGHT: (C)2013,JPO&INPIT【課題】少なくとも皮膚炎の原因菌に対して抗菌活性を示す植物エキス含有製剤を提供する。【解決手段】ユニコーン(Trueunicorn)の抽出物を有効成分として含有する抗菌剤及び皮膚外用剤。【選択図】なし