PROBLEM TO BE SOLVED: To provide a whitening / skin-beautifying agent having a useful and highly safe Nrf2 activator as an active ingredient, which has an inhibitory effect on tyrosinase activity and an inhibitory effect on melanin production. SOLUTION: The active ingredient is a button bofu (long-lived grass, sakuna) extract and a pyranocoumarin compound (formula 1) contained therein. (R 1 in the formula is CH 3 CO group, R 2 is CH 3 CH = C (CH 3 ) CO group (cis form, trans form), (CH 3 ) 2 C = CHCO group, (CH 3 ) 2 CH -CH 2 CO group, CH 3 CH 2- CH (CH 3 ) CO group derivative, or R 1 CH 3 CH 2- CH (CH 3 ) CO group and R 2 CH 3 CO group compound.) [Selection diagram] None【課題】有用且つ安全性の高いNrf2活性化剤を有効成分とするチロシナーゼ活性阻害及びメラニン産生抑制作用を有する美白・美肌剤を提供する。【解決手段】ボタンボウフウ(長命草、サクナ)抽出物及び含有するピラノクマリン化合物(式1)などを有効成分とする。(式中のR1はCH3CO基、R2はCH3CH=C(CH3)CO基(シス体、トランス体)、(CH3)2C=CHCO基、(CH3)2CH-CH2CO基、CH3CH2-CH(CH3)CO基による誘導体、またはR1がCH3CH2-CH(CH3)CO基とR2がCH3CO基からなる化合物。)【選択図】なし