Matrix Biolage Scalp Sync Anti-Dandruff Shampoo is a targeted scalp cleanser that relieves itching, flaking, and irritation while promoting a healthier scalp environment. Formulated with zinc pyrithione to combat visible dandruff and a fermented tea blend plus glycolic acid to gently exfoliate, this shampoo removes buildup and rebalances the scalp microbiome. Experience flake-free, refreshed results for up to 72 hours. Gentle enough for daily use and color-treated hair.