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Flyaway hair is caused by dry hair, too much product build-up, or chemical damage. As hair gets drier, it produces more friction and static electricity. A silicone-based hair serum works for most kinds of hair, keeping it moisturized, shiny and flexible. But if you want to get serious about taming flyaway hairs, you'd consider what kind of hair you have and use product that's specifically designed with your hair in mind:  Hairspray designed to combat flyaways is best for fine to medium hair. A quick spritz should get the job done without sacrificing any naturalness your hair usually has.  Lightweight pomades designed to trap moisture is best for thicker hair. The trick with pomades is applying only a little; it goes a long way! Make sure you spread the pomade over your hands and coat evenly before applying to flyaways. That's what dryer sheets are for! you're thinking. Yep! They're excellent at controlling static electricity, and if you don't have any scruples about rubbing your hair with an anti-static sheet, they're very effective at taming flyaways. Perfect for when you're on the fly. Okay, so you won't be able to do this once you've gotten to class or the office, but this method works if you're still at home when you get the Medusa hair. Just take an ice cube and run it over any hair that's acting up, i.e. hair that's too dry. Cold water helps your hair retain moisture and help control it. The operating term here is non-greasy. As with the dryer sheet, you probably don't associate moisturizing lotion with your hair. But dab a little bit in your hands, spread it out, and work it into your hair, concentrating on the problem areas. Remember that flyaway hair is dry hair, and infusing it with some moisture-trapping lotion can go a long way. Only do this method if you have medium to thick hair texture.
Use product specifically designed for your kind of hair. Try an unscented dryer sheet to control extra static. Get an ice cube and run it over your flyaway hair. Use a small amount of non-greasy hand- or body-lotion.