Rusk STR8 Anti-Frizz and Anti-Curl lotion transforms frizzy, curly, or unruly hair to give a more smooth, straight and obedient style. This non-greasy styling lotion temporarily removes curl and blocks humidity for up to 24 hours while remaining invisible in the hair. Perfect to change up your style or to tame frizz, this hydrating and nourishing formula will boost radiance and give you an overall smooth and healthy head of hair.