The antioxidant-rich serum combines time-released vitamin C with botanicals to treat acne, rosacea, contact dermatitis, and even insect bites. Vitamin C (L-ascorbic acid) and olive leaf extract work together to provide antioxidant protection and health benefits. Kojic acid reduces blemishes, zinc sulfate reduces inflammation, and vitamins E and A condition, nourish and neutralize free radicals. iS Clinical’s Pro-Heal Serum Advance+ offers the highest levels of antioxidant protection, making it suitable for sensitive, compromised, and sickly skin types.