By Elizabeth Angell, Allure magazine
We usually get our news about hair color trends when companies give us a sneak peek at their latest products or top colorists tell us their predictions for what will be hot. But the latest glimpse into the future comes from science! In the journal Chemical Reviews, researchers examined almost 500 recent scientific articles and patents on the chemistry of permanent hair dye, and concluded that we're about to witness an explosion of new techniques.
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Most current products are based on a technology that's been around for 150 years: P-phenylenediamine, a chemical that changes color when exposed to air. It's very effective, but it can be messy and hard to control, as any beginner with a box of hair dye will tell you. Soon, though, we may be able to apply nano-sized colorants to our hair. Instead of chemically changing our shade, these miniscule particles would penetrate each hair shaft and remain trappedRead More »from The Future of Hair Color is...Soon