astringent
 US /əˈstrɪn.dʒənt/
 UK /əˈstrɪn.dʒənt/

1. 
causing the contraction of skin cells and other body tissues
:
• 
The witch hazel acts as a natural astringent.
• 
This toner has an astringent effect on oily skin.
2. 
1. 
a cosmetic or medicinal lotion that causes the contraction of skin cells and other body tissues
:
• 
She applied an astringent to her face after cleansing.
• 
The dermatologist recommended a gentle astringent for her sensitive skin.