How much SPF is enough for a sunscreen?

The weather in Thailand is very hot. And sunlight is the reason for dull skin, sunburn, blemishes, freckles, and dark spots. People would do anything to prevent sunlight. But why do some people even wear hats, use an umbrella, and apply sunscreen with SPF, they still get dull skin. Is it because of low SPF?

You might wonder what SPF is?

SPF or Sun Protection Factor is a measure of how well a sunscreen will protect skin from UV radiation. SPF tells the amount of time the sunscreen will protect you from sunburn, for example, if a person gets sunburned after 30 minutes of exposing the sun and the product has SPF30, it means the person can stay under the sun for 30×30 = 900 minutes or 15 hours otherwise they’ll get sunburn.

But do not be too careless as the sunscreen can be washed away when sweating, getting into water, or doing activities in everyday life.

Do not forget reapplying sunscreen every 2 hours to continuously protect the skin from the sun.


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