The Matrix Biolage Scalpsync Anti-Dandruff Shampoo is a 13.5 fl oz liquid shampoo formulated with Pyrithione Zinc to provide scalp care and anti-dandruff benefits. Suitable for all hair types, this product is dermatologist tested and designed for adult use. The shampoo is part of the Scalpsync product line by Matrix Biolage, known for its effectiveness in treating and preventing dandruff. With its active ingredient, Pyrithione Zinc, this shampoo provides relief and protection for those struggling with scalp issues.