For full protection, apply liberally (2mg/cm2 of skin) to all exposed skin 15 minutes before sun exposure, then rub in to reduce whitening effect.
Reapply
After 40 minutes of swimming or sweating
Immediately after towel drying
At least every 2 hours
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 10am-2pm
Wear long-sleeved shirts, pants, hats, and sunglasses
For children under 6 months of age: ask a doctor.