What It Is:Dr. Barbara Sturm's Calming Serum rebalances irritated skin by helping to reduce redness and burning and restoring a healthy barrier function. The lightweight, lipid-based formula utilizes a potent, plant-based complex of ingredients including Cardiospermum, a vine that calms aggravated skin, Echium, which is rich in saturated fatty acids that help hydrate and soothe, Sunflower Seed Oil which helps neutralize free radicals in the skin and Purslane, an anti-aging powerhouse that helps reduce the visible signs of irritation. Calming Serum can be used regularly or occasionally as required by your skin, and complements all skin types, including extremely dry skin.What It Does: Soothes the complexion after sun exposure, sleep loss, jet lag, air conditioning, environmental pollution, and insect bites. Helps reduce redness after skin treatments, waxing or shaving. Calms men's skin post-shaving, soothing irritation and helping to prevent razor burn. Strengthens the skin's natural defenses, minimizing the skin's sensitized reaction when used over time. How To Use It:After cleansing, apply to the face. Wait for the serum to absorb before applying Dr. Barbara Sturm's Face Cream. To reduce skin sensitivity, use regularly in the morning and/or evening. If you are using the Calming Serum with other serums, apply after all clear serums.