Umberto Giannini Pure Blonde Purple Shampoo 250ml. A toning shampoo formulated to neutralize brassy and yellow tones in blonde, silver, or highlighted hair. Infused with violet pigments and nourishing ingredients to leave hair clean, vibrant, and refreshed. Size: 250ml. How to use – apply to wet hair, lather, leave for 1–2 minutes, and rinse. Use 1–2 times a week or as needed for tone correction.