Step-By-Step: How to Diffuse Curly Hair

This expert guide will get you perfectly defined, frizz-free curls

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If you have curly hair (or just want curly hair) then a diffuser is a must-have item in your beauty arsenal. What is a diffuser? It's an attachment for your blow dryer that changes the air flow from a direct stream of air to a more diffused (get it?) wide circle of air. This helps to minimize frizz, since there's less hot air aimed at any one part of your hair, so it's perfect for curls. If your blow dryer didn't come with a diffuser, you can buy a universal one that will attach onto the nozzle (just make sure it's the right diameter before you buy).

For help using this tool, we talked to Ouidad, a curl expert and founder of the Ouidad line of hair products (specifically for curly girls) and Ouidad salons, which specialize in cutting and styling curly hair. She walked us through the step-by-step process for diffusing hair -- everything from the products to use, the temperature of the blow dryer and even exactly what to do with your hands. Follow her guide and you're sure to wind up with defined, frizz-free, volumized and shiny curls.

Even if you don't have naturally curly hair we got tips to get it that way with a diffuser. See how you can go from wavy to full on curly in a snap.