What is SPF?

Updated: Aug 6, 2020

- 'Sun Protection Factor'. It is the relative measure of how long a sunscreen will protect your skin from ultraviolet rays.

- SPF is figured by comparing the amount of time taken to burn a skin protected with sunscreen to the amount of time taken to burn a skin without sunscreen.

- SPF ranges from 8-100.The higher the SPF,higher will be the protection.However the highest recommended is SPF 50.

- Dermatologists recommend using SPF 15 and SPF 30 sunscreen, as SPF 30 itself blocks 97% of UV rays.

- No sunscreen will block 100 percent of the UV rays.

Types of UV rays:

- UVA rays produce sunburn.

- UVB rays penetrate more deeply into the skin and responsible for premature aging and wrinkle formation.

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