Secret Weapon: Nice 'n Easy ColorSeal

At-home hair-color devotees have long reaped the rewards of the magical color-boosting conditioner included in every package of Nice 'n Easy permanent dye. The ColorSeal Conditioning Gloss is an intensive weekly conditioner that keeps color looking healthy, shiny, and vibrant for weeks on end. At long last, this below-the-radar wonder is being sold separately and is now available to the masses at a drugstore near you. Bonus: the nourishing treatment is a serious steal at less than $5.