Started in 1907 by French Chemist Eugene Schueller and based upon Schueller's discovery of p-phenyldiamine that allowed consumers to safely dye their hair color. The Harmless Hair Dye Company ultimately became L'Oreal.
Daily Hair Tip
There are different types of conditioners including pre-shampoo, rinse-out, leave-in and deep conditioning. Olive oil and other volume enhancing products may help strip hair color. When in doubt, ask your stylist.