PRO-HEAL® SERUM ADVANCE+® features our scientifically advanced L-ascorbic acid (vitamin C), combined with a superior form of olive leaf extract and pure vitamins E and A. This powerful formulation significantly increases antioxidant protection and offers enhanced healing properties. A clinically proven formula, PRO-HEAL SERUM ADVANCE+ is also excellent for treating rosacea, cystic acne, insect bites, and some forms of dermatitis.