Mizani H20 Intense Night Time Treatment. The MIZANI H20 Intense Night Time Treat is an overnight treatment for excessively curly hair, containing shea butter, vitamins and patented ceramide strengthening technology that is designed to increase hair strength. This MIZANI H20 Intense Night Time Treat will reduce the formation of split ends, enhance moisture retention and controls frizz without weighing down your dry, rebellious and course hair. Directions of use.. Use at night, every second or third night or as needed. Apply a small amount to hands, rub together, massage through and prepare hair for your normal night time regime. For best results, use consistently for at least two weeks.