What the hair from your head? Depends. If you are talking about body hair, it just looks like that, but it's not true
It is a stronger version of a toner that is for oily skin. An astringent is what you use after you have cleaned your face with a face cleanser. It is necessary to use a toner/astringent after you wash your face to lower your pH after the cleanse. Follow with a face moisturizer.