The L’Oréal Colorsonic is a $125 high-tech hair wand that lets you quickly dye your whole head, cover grays, or touch up your roots.

Find the perfect red hair shade with these budget-friendly brands. If you're looking for bright new hair dye ideas, ... L'Oreal Paris Superior Preference Hair Color in Auburn Brown. $9.97.

The L’Oreal Superior Preference hair color system is a permanent hair dye with a unique Fade-Defying Color and Shine System that keeps your hair color lasting longer, up to eight weeks.

For salons, L'Oréal is launching an AR-connected hair color system that uses Virtual Try-on to project shades, and an algorithm that offers hair color in more than 1,500 custom options.