20 Cool Rainbow Hair Photos That Will Have You Running to the Salon For A New Dye-Job

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When it comes to hair dye, things have changed over the last 60 years. Like, a lot. Back in the 1930s, women who dared to dabble in the world of hair color experienced swelling, headaches, and blisters on their forehead (it had something to do with the reaction of the ammonia and peroxide — eek!). In the 1950s, L’Oréal and Clairol introduced the first mainstream hair-coloring products, allowing women to transform their dos, but "painting" one's hair was considered a stigma and was typically kept a secret between a woman and her hairdresser. Fast forward to now where we live in a world that allows us to turn our brown hairs into blonde and our blonde hairs into blue, not just at a salon, but in the comfort of our own home. It's an exciting time to be alive, ladies! We're not just kept to the confines of natural color, either.

Mermaid and rainbow hair is a craze being embraced by every kind of girl, from celebrities like Ke$ha to your little sister in high school. And the best part about it? Not one hair color is the same as the next! Check out these 20 incredible examples of colored dos to inspire your next dye job. You know you want to do it!

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