Apply liberally after cleansing and toning at 15 minutes before sun exposure. Skin Protection Measures: Spending time in the sun increases your risk of skin cancer and early skin aging.To decrease risk, regularly use a sunscreen with Broad Spectrum SPF 15 or higher and other protective measures including: limit time in the sun, especially from 10am to 2pm and wear long-sleeved shirts, pants, hats and sunglasses.