Best Shampoo For Colour-Treated Hair: Olaplex No. 4 Bond Maintenance Shampoo
While some shampoos and conditioners offer ingredients to boost colour-treated hair, another important thing to consider is whether or not the products are colour-safe while also building back the bonds broken during the chemical process. The popular Olaplex No. 4 Bond Maintenance Shampoo ($28) does exactly that. It works well for people who want to keep hair as strong, protected, and frizz-free as possible, while also safeguarding its colour.