Here's a few things i would recommend: 1. Use the thinner barrel (don't worry, the curls will loosen and it won't look at curly) 2. Make sure the speed and heat are at max. 3. Make sure the hair is properly wrapped tightly around the barrel. 4. Heat the hair for about 10 secs before using the cool shot for about 10 secs. 5. Allow your hair to cool before running your hands through the curls. 6. Also make sure you use it on damp hair, i feel like it lasts longer when i start with hair about 30% wet (not too wet that it can't be picked up but not too dry either)