Of course, the opposite is true, too: If you use a lesser-quality product, you run the risk of stripping your hue and further damaging your hair. The second is that the color can fade or tinge pretty easily, so you need something that’s going to help protect the pigment and keep it from picking up unwanted undertones. And as an old hair colorist adage goes, why spend all that money on hair color if you’re not going to tend to it properly? So if you do dye your hair, I encourage you to find the highest-quality option that fits within your budget (don’t worry: there are good shampoos at every price point). Here, I rounded up my favorites as someone with decades of hair-coloring experience—who happens to know a thing or two about cosmetic ingredients, too. No. 4 Bond Maintenance Shampoo Olaplex ($28) Daily Shampoo, dae ($24) Sephora.com Cool Blonde Shampoo, dpHue ($26) dpHue.com Technician Color Shampoo, FEKKAI ($24) Ulta.com Our high standards also come from testing products—many, many products. Our editors and writers rigorously test and research the products featured in our roundups to offer you the best, most informed recommendations. When we write reviews, you can trust we spend quality time with the formulas: We don’t simply rave about products we’ve slathered on the back of our hand. We endorse products we’ve tried and loved. Learn more about our testing process and clean beauty standards here.