Violet shampoo that neutralizes yellow tones Biokap Bellezza is a delicate shampoo with violet pigments that corrects unwanted yellow reflections - both on natural shades and on dyed hair. The shampoo is perfect for caring for blonde, white, gray and bleached hair. It will also help prevent orange undertones in brown hair. Specialized care against yellow tones Biokap Bellezza specialist shampoo helps keep your hair cool. The vegan formula combines the action of purple clay with organic cornflower and rice and wheat proteins to rebuild and strengthen the hair fiber. The moisturizing vegetable oils contained in the shampoo give the hair a dull shine and a healthy appearance.