Defense SPF scalp spray is designed to help protect often overlooked areas of the scalp from sun exposure. Its nourishing formula supports scalp health, which is essential for maintaining the appearance of thicker, fuller-looking hair. Suitable for individuals seeking to help protect their hair, scalp and skin from the effects of sun exposure. HOW TO USE: Apply liberally and evenly every 15 minutes before sun exposure. Reapply after 80 minutes of swimming or sweating, Immediately after towel drying, at least every 2 hours.