Spray onto dry or towel-dried hair. Do not rinse. For a highlight effect, spray on select strands. Color is gradual with repeated use. Spray daily for 3-4 weeks. Results can be accelerated by the sun and heat styling toolsKLORANE BEAUTY TIP :REVIVE BLOND HAIR:Spray all over the head to cover the hair, 2 sprays per section. Then comb or brush, as desired, to work the product through the hair.