Scalp Care Purifying AHA 5% Booster + Prebiotic - Key IngredientsExpertly formulated with a prebiotic - Featuring a rebalancing prebiotic (polyfructose extract from chicory roots) to further support a healthy scalp environment, maximizing your hairs potential.Powered by Glycolic Acid - Harnesses the clarifying power of Glycolic Acid, a gentle chemical exfoliant that eliminates excess product build-up, helps remove dead skin cells and refines the appearance of the scalp. Please avoid sun exposure.Research Results97%* agree the product left the appearance and texture of their scalp feeling progressively refined and improved in just 2 weeks.*Based on an independent user trial for 4 weeks92%* agree the product helped to clear build-up on their scalp in just 2 weeks. - Scalp Care Purifying AHA 5% Booster + Prebiotic