The?MIZANI STRENGTH FUSION??Intense Nighttime Treatment is a hair treatment that works while you sleep to fortify and nourish dry and damaged hair, leaving it smooth and strong in the morning. An overnight treatment ideal for multi-tasking while you rest, this professional product dramatically strengthens dry, brittle hair for sleek, conditioned locks. Formulated with shea butter and vitamins, this intense hair serum mask contains pantented anti-breakage technology to ensure you avoid split ends and breakage. An essential part of your evening haircare regimen, this product also doubles as a leave-in to prolong the results of the Strength Fusion Post-Process Treatment.