CLINICALLY TESTED: Up To 100% Dandruff Reduction* This hair mask works with Australian Tea Tree Anti-Dandruff Shampoo Conditioner & Scalp Serum to reduce dandruff. MAKES HAIR SMOOTH: Enjoy smooth and moisturized hair with Australian Tea Tree Anti-Dandruff Hair Mask. DEEPLY MOISTURIZES: Specially formulated with conditioning ingredients to deeply moisturize the hair. KEEPS DRYNESS AWAY: The hair mask smoothens strands and helps detangle keeping breakage at bay. SULPHATE & PARABEN-FREE: Non-toxic. FDA-Approved. Dermatologically tested. AUSTRALIAN TEA TREE: Has natural antifungal and antibacterial properties that fight dandruff by reducing Malassezia (fungal) growth. ZINC PYRITHIONE (ZPT) AND PIROCTONE OLAMINE: are gentle antifungal ingredients that regulate scalp flora soothe irritation and itching.