Astringent

These grapes are fairly astringent, so they make my mouth pucker.

An astringent, like an alum block or styptic pencil, helps close and heal small cuts after shaving.

I can't find an astringent that doesn't dry out my skin.

The medlars are still astringent.

These medlars taste too astringent.

Mature medlars are astringent but bletted ones are definitely sweet.

Philip, who was made Duke of Edinburgh on the couple’s wedding, introduced a new, less stuffy, though as the years went on occasionally astringent, tone to the royal family.