It's a surefire way to turn a few heads: neon streaks cascading down shoulders, bright pinks, blues and greens. It certainly isn't your mother's night-on-the-town style, but it's a trend teenagers and celebs have been taking to.
It's hair chalk.
From Christina Aguilera's ever-changing hairdos on "The Voice" to the million-plus view videos on YouTube teaching girls how to DIY chalk their hair, feathers are out and chalk is clearly in.
We met up with Jessica Swanson, a hairstylist in New York. "Hair chalk has been around for about a year and a half now, but it's been a huge trend this summer." And why not? It's simple. Style hair, add chalk, then spray with hairspray. Done.
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"There are a lot of people, especially on the Internet, talking about using chalk from art supply stores or street chalk. If you are going to try this trend, it's really best to buy chalk formulated for hair. You do run the risk with art store chalks of dying and damaging your hair."
Swanson explains that one common misconception pervasive on the Internet is that to set the chalk, you have to add heat. "You don't want to heat the hair once the chalk is in. If you are going to style your hair, style it before adding the chalk. Using hairspray after you've applied the chalk will help seal the chalk in."
Whether you're a blonde, brunette, have dreadlocks or curls, hair chalk works for all types of hair. "Certain colors show up better with lighter hair, but really, hair chalk works great for all types. There are even new colors out like gold and teal that are especially great for darker hair colors."
And how long does it last? "Just until you wash it!" So you can head to work the next morning without your boss being the wiser that the night before you donned pink tresses for a night out with the girls.