PROBLEM TO BE SOLVED: To provide a cosmetic that improves a skin barrier function to form a healthy skin while forming a flexible and stretchable skin by inhibiting aging of dermal fibroblasts, the cosmetic having a whitening effect together, by providing various agents that have no side effects and is excellent in safety.SOLUTION: The fermentation product obtained by fermenting Lonicera japonica (Caprifoliaceae Lonicera Japanese honeysuckle) with lactic acid bacteria is used. The lactic acid bacteria is preferred to be Lactobacillus plantarum. The fermentation product obtained by fermenting Lonicera japonica with lactic acid bacteria has a strong cell differentiation promotion effect, barrier function improving effect, cell aging inhibitory effect, SA-β-Gal activity inhibitory effect, and whitening effect as compared with Lonicera japonica extract before fermentation treatment, and is useful.COPYRIGHT: (C)2015,JPO&INPIT【課題】副作用がなく、安全性に優れた各種剤を提供することにより、表皮バリア機能を向上させて健全な表皮を形成させるとともに、真皮線維芽細胞の老化を抑制させることにより、張り・弾力のある皮膚を形成し、合わせて美白効果を有する化粧料を提供する。【解決手段】金銀花(スイカズラ科スイカズラ属スイカズラ)を乳酸菌により発酵させて得られる発酵物を用いる。前記乳酸菌はLactobacillus plantarumであることが好ましい。【効果】金銀花を、乳酸菌により発酵させて得られた発酵物は、発酵処理前の金銀花抽出物と比較して強い細胞分化促進効果、バリア機能改善効果、細胞老化抑制効果、SA-β-Gal活性抑制効果、美白効果を有し、有用である。【選択図】図-1