An overnight medicated treatment to help clear skin and prevent blemishes by sloughing off dead skin cells and reducing sebum (oil) that clogs follicles leading to breakouts. Dermalogica's unique Alginated Zinc Triplex helps fight bacteria, provides anti-inflammatory benefits to soothe irritated skin and helps regulate sebum production. Exfoliating Salicylic Acid is delivered deep into the follicles to prevent future blemishes. Naturally purifying Tea Tree Oil helps fight future breakouts. Fragrance free. Professional recommendation advised.