for sunscreen use, apply liberally 15 minutes before sun exposure.
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 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