If you’re someone who dyes or highlights your hair regularly, odds are you know what a hassle it can be to keep your strands looking fresh in the weeks following your salon visit. Sure, there are products like hair masks, deep conditioners, and bond-building treatments that keep hair soft and strong, but maintaining color can feel like a whole different ball game.

And if you think there’s just one magic product that does the trick, think again. As it turns out, the secret is as simple as investing in a good shampoo and conditioner specifically created for color-treated hair. “Shampoo and conditioners for color-treated hair don’t contain chemicals that typically strip the hair of color, such as sulfates, parabens, or high pH,” says celebrity hairstylist Hanna Oh. “Instead, they are formulated with an acidic PH level and antioxidants to help gently cleanse the hair by keeping the hair cuticle laid smooth and sealed for longer-lasting color and overall healthier hair.”