L'Oreal Excellence Creme Permanent Hair Dye No 10.21 Pearl Blonde Sandre It gives impressive color and offers 100% coverage of white hair and as well as hair protection! With the new routine nourishes and protects hair, leaving it silky and soft. USE Don't forget to take the allergy warning test 48 hours before dyeing your hair. All instructions can be found in the instruction leaflet inside the package. Place a towel on your shoulders to avoid stains from applying the paint. Step 1: Mix the serum enriched dye cream with the oxidizing cream and apply with the special applicator to dry/unwashed hair, after dividing it into 4 large strands. You start at the roots and then move on to the lengths and edges. Wait 30 minutes (35 minutes if you have more than 70% white hair or very unruly hair). Step 2: Rinse the dye and wash your hair with the new post color shampoo to remove dye residue. Step 3: Apply the after-dye care cream. Dry your hair and you're good to go! As simple as that!