Think of it as moisture in the purest of forms - so small molecularly, it provides the deepest and most effective hydration to your skin. Use before applying Daytime or Evening Moisturizers for the greatest benefit. Climate Control is unique because of its dual delivery system, which keeps the two key ingredients (SenePlex® and SelPlex™), inactive and separated into two parts until shaken and combined. SelPlex™ is a blend of specifically selected herbal oil extracts, mixed vitamins and tocopherols that soothe the skin. SelPlex evenly delivers the purest of essential oils without emulsifiers (that can dilute the actives) into the deepest layers of the skin. Combined with SenePlex®, the anti-aging and moisturizing properties are enhanced.