Subjects used the study product on their face, hand, and inner forearm twice daily for 12 weeks.

受试者在他们的面部、手部、前臂内侧使用研究产品，每天两次，共12周。

youdao

Subjects used the study product on their face, hand, and inner forearm twice daily for 12 weeks.

受试者在他们的面部、手部、前臂内侧使用研究产品，每天两次，共12周。

youdao