A colour boosting treatment from evo hair to tone and revive light to dark brown hair. Treat, tone and conditioner your hair all in one with the evo fabuloso cool brown colour boosting treatment. Designed specifically for dull, dry, colour-treated light brown to dark brown hair, this vegan and cruelty-free evo colour boosting treatment instantly refreshes and tones colour while adding shine and hydration to locks. A winner.