Just got a fresh, new hair colour? PSA: Heat can not only damage your hair further but also alter the colour of your new dye job. "It’s important to use a product or tool that protects your hair from extreme heat damage," says celebrity hairstylist Priyanka Borkar. This means that you can’t skip the heat-protectant spray if you’re using any hot tools. Oh, and if the sun is out, don’t forget to cover your scalp and hair with a hat—UV rays can bleach the colour out of your hair, too!