Directions apply liberally 15 minutes before sun exposure m reapply: after 80 minutes of swimming or sweating "lmmediately after towel drying "at least every 2 hours m Sun Protection Measures. Spending time in the sun increases your risk of skin cancer andearly skin aging. To decrease this risk, regularly use a sunscreen with a broad spectrum SPF value of 15 or higher and othersun protection measures including:"limit time in the sun.especially from 10 a.m.-2 p.m..wear long-sleeved shirts pants, hats,and sunglasses children under 6 months Ask a doctor