Biolage Scalp Sync Anti-Dandruff Shampoo is a gentle shampoo infused with Zinc Pyrithione, fermented tea, and glycolic acid that helps eliminate scalp itching, irritation, redness, scaling and flaking associated with dandruff Benefits: Leaves scalp feeling fresh and balanced Hair is left soft, smooth, hydrated and manageable with a natural-looking shine Infused with Zinc Pyrithione, fermented tea, and glycolic acid that helps eliminate scalp itching, irritation, redness, scaling and flaking associated with dandruff Deeply cleanses the scalp without stripping natural oils Formulated Without: Parabens Mineral Oils Artificial Colorants 100% authentic- purchased by me at a professional cosmo store.