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You know what frizzy hair looks like and feels like. Live somewhere hot and humid, and you probably even know what causes it. But what exactly
is frizz? According to hairstylist Nigella Miller, it is hair that doesn’t align with surrounding hair, caused by hair-swelling moisture. Frizziness happens when the level of humidity in the area is greater than the level of water in your hair, she explains. You absorb a great amount of moisture from the air, whether you re indoors or outdoors. Once your hair strand has consumed all the moisture, it will cause hair to swell and frizz.”