Biolage Scalp Sync Anti-Dandruff Shampoo is a gentle shampoo that targets dandruff, controls the appearance of flakes & relieves scalp irritation. Biolage Scalp Sync Anti-Dandruff Shampoo is a gentle shampoo infused with Zinc Pyrithione, fermented tea, and glycolic acid that helps eliminate irritation. Get rid of dandruff using Biolage Anti-Dandruff shampoo and welcome hair that is left feeling clean, healthy and less irritated by scalp itching, redness, scaling, and flaking associated with dandruff.