Nook The Service Color No Yellow Shampoo is a purple shampoo formulated with Goji Water and Organic Red Grape Oil (eco-certified), known for their antioxidant and regenerating properties. Specific for bleached, streaked, lightened and highlighted hair, it effectively neutralizes undesired yellow-orange tones. Nourishes, hydrates and strengthens the fiber of the hair, restoring shine, elasticity and smoothness. Also useful for restoring gloss and brightness to grey/white hair.