Tired of frizz? Kevin Murphy's EVER. SMOOTH is activated by the heat of your blow dryer, creating the ultimate silky, smooth blow dry with softness, volume and a frizz-free finish. Defending against humidity and frizz while extending the longevity of your chosen hair style, Kevin Murphy's EVER. SMOOTH is a super hard-working blow dry treatment that is activated by the heat of your hair dryer to create the ultimate silky, smooth hair style.