A hair mask is an intense nourishing treatment to help strengthen, hydrate, de-frizz and restore dry, damaged, processed or curly hair to healthy bounce and shine. Masque is an alternate spelling for some hair masque treatments – unless you're referring to an Elizabethan courtly drama called a masque.

Hair masks sound like a wonderful way to maintain healthy hair.

A hair mask is an intense treatment that targets specific haircare needs. Depending on which one you choose, hair masks may help to strengthen, hydrate, de-frizz, rejuvenate, thicken, repair, and more