Dr. Barbara Sturm’s ‘Calming Serum’ is enriched with an active plant-based complex of Cladosporium, Echium and Sunflower to re-balance irritated complexions. Perfected at the brand’s custom facility in Germany, this gentle formula contains Purslane which helps soothe inflammation and protect delicate cell membranes. It’s ideal for those affected by overexposure to the sun, environmental pollution, air conditioning, jet lag and sleep loss.