PROBLEM TO BE SOLVED: To provide a melanosomal localization regulator and a composition useful for alleviation, prophylaxis and improvement of various pigmentation symptoms including stains and freckles.SOLUTION: The invention provides a melanosomal localization regulator containing Thymus vulgaris extract as an active ingredient, and a pigmentation inhibitor based on the melanosomal localization regulation action and various compositions (pharmaceutical compositions, food and drink compositions, cosmetic compositions) containing the melanosomal localization regulator.COPYRIGHT: (C)2015,JPO&INPIT【課題】メラノソーム局在調節剤及び、シミやソバカスをはじめとする様々な色素沈着症状の緩和、予防・改善に有用な組成物の提供。【解決手段】タチジャコウソウ抽出物を有効成分とするメラノソーム局在調節剤、及びメラノソーム局在調節作用に基づく色素沈着抑制剤。メラノソーム局在調節剤を含有する各種組成物(医薬組成物、飲食品組成物、化粧料組成物)。【選択図】なし