For sunscreen use■ Apply liberally 15 minutes before sun exposure■ Reapply at least every 2 hours■ Use a water resistant sunscreen if swimming or sweating■ Sun Protection Measures. Spending time in the sun increases your risk of skin cancer and early skin aging. To decrease this risk, regularly use a sunscreen with a Broad Spectrum SPF value of 15 or higher and other sun 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 of age: Ask a doctor