apply evenly 15 minutes before sun exposure
reapply:
at least every two 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 again. 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-sleeve shirts, pants, hats and sunglasses
children under 6 months:
Ask a doctor