Mega Sleek System, with shea butter, helps control rebellious, unruly hair and manages frizz against humidity for smoothness. Up to 5X smoother hair. Hair is smooth, shiny and defrizzed. Suitable for color-treated hair. Mega Sleek, previously known as Sleek. Keep it smooth! Get ready for everlasting smoothness with Mega Sleek. Now all you need to do is play it smooth! With shea butter to seal the cuticle, Mega Sleek provides frizz control for silky-smooth hair and up to 5X smoother hair.