Because sometimes your hair needs a detox too.
If you feel like your hair is weighed down, limp, and kinda lifeless, chances are, you have product build up on your strands. Everything from dry shampoo to heat protection sprays can cling to the hairs and over time, leave them flat and brittle.
Bumble and Bumble describe their Sunday Shampoo as "a weekly detox to rid hair of product residue, hard water minerals, pollutants, you name it." Dry shampoo addicts, this one's for you.