This listings for 1 liter 33oz ! No Yellow Vegan Shampoo helps you keep your color consistent and vibrant. No Yellow is used for bleached, blonde, streaked, and grey hair. SHAMPOO No Yellow Vegan Shampoo neutralizes yellow reflections driving from pigment residue after bleaching, lightening and the oxidizing action of the elements. No Yellow treatment is the only professional treatment formulated with a special violet pigment with intensive action that neutralizes yellow reflections giving the hair a cool, bright, even reflection. Features: Vegan Contains no sulfates, silicones, or parabens Violet pigment tones down the hair to give it that silver, ash look. How/When: Apply on damp or dry hair by massaging into the lengths for 1-5 minutes and rinse off; for a stronger effect, leave on for 5-10 minutes. Use gloves to prevent staining hands. Professionals can use to pre-tone clients' hair that is bleached, super lightened, or on clients who want less of yellow tones in their hair. Sulphate Free Paraben Free Silicone Free