Apply to shampooed and towel-dried hair. Massage through lengths and ends. Leave on for 3-5 minutes, or longer depending on desired degree of neutralization. Rinse thoroughly. In case of contact with eyes, rinse them immediately and thoroughly.
Pro Tip: Use Bain Ultra-Violet to get an instant & powerful shot of anti-brass. After reaching the desired tone, use Masque Ultra-Violet to maintain & protect your blonde on a weekly basis. Your haidresser can advice you on how long you should leave the Masque Ultra-Violet, to achieve your desired tone.