11. She keeps it cool in the shower.
When you’re washing your hair, you don’t want the water too hot, warns David Edery, owner of Attitudes Paris Salon in Houston. Excess heat can blast the volume out of your hair, leaving you with limp locks. Instead, opt for warm water — this temperature allows you to work up a nice lather while still staying hot enough to rinse suds clean. And when it comes to the final post-conditioner rinse, the colder the better. Chilly water locks in those coveted nutrients into each strand, adding a beautiful, healthy luster.