Dr. Barbara Sturm's Calming Serum utilises botanical extracts to soothe the feeling of sensitive skin. The formula is packed with antioxidant active, Purslane, to protect the skin against environmental aggressors, such as pollution. A plant-based complex, including cardiospermum, echium and sunflower, minimises the appearance of redness and pigmentation to promote a balanced look. Over time, the serum nourishes the skin's natural moisture barrier to deliver a protected, hydrated finish.