Are your clients experiencing frizz, static, excessive tangling, breakage, build up, scalp irritation or even mildew? The culprit to one or all of those common problems might be sleeping on wet/damp hair, says Sophia Royal (@chynagirrl_hair), an educator for Pure Brazilian, as well as owner and hair artist at Salon Philosophie in Vacaville, California. Sophia Royal, Salon Owner and Pure Brazilian Educator courtesy of Pure Brazilian“It all comes down to chemistry,” explains Royal. Leaving the hair damp for hours on end—especially sleeping on wet/damp hair—damages the cuticle layer and over-exposes the cortex. “Educate your clients that drying their hair with a diffuser, blow dryer or sitting under a hooded dryer is always better than air drying,” concludes Royal.