How to Prevent Hair Damage
These Creepy Photos Give You a Zoomed-In Look at What Hair Damage Really Looks Like
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We know, we know — the Dyson Supersonic Hair Dryer ($399) costs more than an Apple Watch, but we assure you, the technology behind it is just as genius. The device measures the temperature of the airflow 20 times per second to make sure it stays precisely at the heat setting you selected, and if it starts to get too hot, the dryer will self-adjust as needed to prevent your hair from getting fried.