To provide an external preparation for the skin for reducing the yellowness of the skin which has already yellowed. An external preparation for the skin for reducing the yellowness of the skin which has already yellowed, said preparation comprising hesperetin and/or glycosyl hesperetin as an active ingredient.本發明以提供使用於減低已生成的肌膚暗黃之皮膚外用劑作為課題。該解決手段為藉由提供含有橙皮素及/或糖基橙皮素作為有效成分而成的使用於減低已生成的肌膚暗黃之皮膚外用劑而解決前述課題。