RX Bio Exosome Ampoule Sulfur AC is a medical and professional-grade treatment that promotes the recovery of troubled skin by controlling excess sebum, balancing moisture, and stimulating collagen-driven skin repair and regeneration. The Purifying AC Exosome line utilizes Dermafirm’s special exosome technology and the proprietary ratio of ingredients known for their highly anti-inflammatory, soothing, and moisturizing properties, and their effect on restoring skin health.