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What is SPF?

We are all familiar with SPF on sunscreen products already, but do you know what it stands for or how much SPF we actually look for when buying sunscreen.

SPF stands for Sun Protection Factor. SPF number starts from 2 - 100 indicating how long the product will protect our skin from sun radiation.

For example, SPF 15 means it would take you 15 times longer to burn than if you weren't wearing sunscreen. Or normally your skin might burn in 20 minutes but with SPF it would be SPF 15*20 minutes of sun time = 300 minutes. That’s how many minutes you can stay in the sun without burning.

However, the SPF number is tested and calculated in labs using UV radiation from artificial sources at the right temperature and humidity or movement, the number result may be higher than it is when used in a real outdoor scenario.

Besides looking for a very high SPF number, also look for PA that indicates the level of UVA protection as well.

There are a lot of sunscreen products with different SPF numbers and PA levels out there. Try to choose the right one for your skin type. We highly recommend you to choose the one that not only provides you protection but nourishment and repair. Of course chowa is the number one best choice for all skin types.

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