Koleston, lovingly developed for those seeking intense and long-lasting color, provides 100% gray coverage thanks to its water-resistant technology. Its exclusive Intense Gloss Treatment leaves your hair shinier, softer, and helps maintain color intensity. In addition, it comes with a Color Reactivator, which deposits more pigments in your hair to maintain the color even after 15 days.

How to use: Apply throughout the hair, from roots to ends. Leave on for 40 minutes. For resistant gray hair, leave on for an additional 10 minutes.

About the brand: Wella is one of the world's largest suppliers of cosmetics. Founded in 1880 by Franz Stroher, it is headquartered in Darmstadt, Germany, and is present in more than 150 countries. It specializes in hair products, including shampoos, conditioners, treatment creams, straightening products, and hair dyes.