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Do you have any quick hair-drying tips?

—Katie Greenthal, Los Angeles, CA

Bobbi: Step out of the bathroom—the humidity in there extends your drying time. Blot (don’t rub!) wet hair with an absorbent microfiber towel and air-dry for a bit. In a pinch, facial moisturizer can double as a hair product, preventing frizz, according to my hairstylist, Eric Dominguez of Eric Salon in Montclair, New Jersey. I also swear by a pro-grade blow-dryer, like the Solis Titan Dryer S407T ($130; 800-323-4252).

Next: My hair gets so dry in the summer. How can I add moisture?