Joico Defy Damage Sleepover Overnight Nourishing Treatment. Rise and shine with Defy Damage Sleepover, Joico bedtime bond-strengthener that nourishes hair while you sleep. With a brilliant formula that fortifies bonds through the night, this no-rinse treatment delivers softer, shinier, visibly healthier hair by morning. Instantly softens smooths hair Boosts shine Reduces appearance of split ends Strengthen bond while you sleep Protects against environmental pollutants "Sleep-aid" fragrance helps you relax No rinse out treatment Just a few pumps before bed-no need to rinse-just wake up and glow. It’s that easy! Apply evenly to dry or towel-dried hair at bedtime. Avoid root area. Leave in overnight-no rinsing necessary. Use 2-3x a week or as needed.