I only let Aveda stylists do my hair...had the most perfect one for over five years till she moved to the west coast. Their Self Control is the best hair product ever for frizz!!! (it comes in a stick, kinda like deodorant) On a 90+ degree day in Rome, super-high humidity, i was out the door by 6 am, didn't land in bed till four the next morning, went exploring the city all day (outside in worst of the heat and sun) and clubbing all night, and my super-thick, heavy (almost waist-length at the time) hair stayed super-sleek and straight. It didn't get greasy or heavy anything, stayed very light, very manageable, too. All this with an absolutely TINY amount of product!!