If you’ve ever dyed your hair, your strands have fallen victim to oxidation at one point or another. You’ve probably heard about oxidation in chemistry class, where clear formulas (or foods) can warp into a brownish hue when exposed to environmental aggressors. The same goes for your hair. Unfortunately, there’s nothing you can really do to prevent this process. There are countless environmental factors that work against your hair’s hue, including the sun, hard water, and styling products, making some level of color change inevitable. However, there are ways to revert your shade back to its desired color—and the best part is you can do it yourself. From masks and shampoos to glosses and conditioning treatments, these are the best toning products to eliminate unwanted brassy and red tones and revive your strands at home (so you don’t find yourself in the stylist’s chair every other week). To buy: $64, kerastase-usa.com. To buy: $29, sephora.com. To buy: $20, ulta.com. To buy: $30, ulta.com. To buy: $13; ritahazan.com.
