Hot air from a hair dryer does tend to dry out your hair ever so slightly. It makes therefore sense to apply a protective coating to your hair before blow-drying it. You can do this by using mousse or a special thermospray. Such styling aids coat each hair with a very thin film, thus protecting it from the damages caused by rough brushing and the drying effect of hot air.
A hair dryer with two or three heat settings, two or three blower settings and also an ambient air setting works best. Your hair dryer should have plenty of power. 1,600 to 2,000 Watts output will dry your hair in no time at all. This saves styling time. Use plenty of power and the medium heat setting of your hair dryer to almost finish drying your hair. Then you can proceed with styling.