Tip No. 9: Wash your hair with cold water
“I usually end my shower by rinsing my hair with cold water, to close up the [follicles].” — Michelle M.
Here’s why it works: Hot water expands your hair cuticle and stimulates the sebaceous glands (they’re the ones that produce oil). Cold water does the exact opposite. It causes the hair cuticle to close itself off and stops the production of oil for a longer period of time, says Chavez.
