Superior Bonding Base Formula™ interlocks with the upper layer of the skin to last longer. Allows skin to breathe and perspire, keeping you cooler. Formulated for daily use. Antioxidant vitamins and aloe vera nourish and moisturize skin. Hypoallergenic, fragrance-free, nongreasy, and noncomedogenic. Thoroughly tested at sea level and high-altitude conditions to ensure the best possible skin protection in any environment.