• apply liberally 15 minutes before sun exposure• use a water-resistant sunscreen if swimming or sweating• reapply at least every 2 hours• children under 6 months: Ask a doctor• Sun Protection Measures. Spending time in the sun increases your risk of skin cancer and early skin aging. Todecrease this risk, regularly use a sunscreen with a broad spectrum SPF of 15 or higher and other sun protectionmeasures including:• limit time in the sun, especially from 10 a.m. - 2 p.m.• wear long-sleeve shirts, pants, hats, and sunglasses