CLINICALLY TESTED: Up To 100% Dandruff Reduction* This scalp serum works with Australian Tea Tree Anti-Dandruff Shampoo Hair Mask & Conditioner to reduce dandruff. REMOVES DANDRUFF FROM THE ROOT: The specially formulated serum targets the underlying causes of dandruff effectively reducing flakiness and itching. BALANCE MICROBIOME: Helps restore and maintain a healthy scalp microbiome by regulating microbial balance preventing dandruff recurrence. RELIEVES DRYNESS: Helps hydrate and moisturise the scalp and hair preventing dryness and flakiness common issues associated with dandruff-prone scalps. 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.