Dermalogica Overnight Clearing Gel is an overnight treatment designed to help clear skin congestion and help prevent future breakouts. A Vitamin B complex of Niacinamide and Biotin combined with Zinc Gluconate, Yeast Extract, Caffeine and Nordihydroguaiaretic Acid soothes irritation, inhibits overactive sebaceous gland activity and purifies. Rosemary and Spiraea extracts inhibit the growth of acnegenic bacteria while stimulating the skin’s natural antimicrobial agents for clearer, healthier skin. Salicylic Acid sloughs off pore-clogging skin cells to inhibit development of further breakouts, while naturally-antiseptic Tea Tree Oil assists in skin-healing. Contains no artificial fragrance or color.