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What is Sunscreen? What is Sun Protection Factor (SPF)? How to Use Sunscreen?


factor 50 sunscreen for the beach
Sunscreen

What is Sunscreen and What is SPF?

Sunscreen is a product used to protect your skin from the harmful ultraviolet (UV) rays of the sun. UV rays can cause sunburn, skin aging, and increase the risk of skin cancer. Sunscreens help reduce these risks.


What is Sunscreen?

Sunscreen creates a barrier on the skin that blocks or reduces the harmful effects of UV rays. It protects against sunburns, premature skin aging, and skin cancer.


What is Sun Protection Factor (SPF)?

SPF, or Sun Protection Factor, measures how well a sunscreen protects your skin from UVB rays. The higher the SPF number, the stronger the protection.

  • SPF 15: Blocks about 93% of UV rays.

  • SPF 30: Blocks about 97% of UV rays.

  • SPF 50: Blocks about 98% of UV rays.

SPF also indicates how long you can stay in the sun without getting burned. For example, if you normally burn in 10 minutes, an SPF 30 sunscreen allows you to stay in the sun for about 300 minutes (30 times longer) without burning. However, this time can vary based on skin type, sweating, water exposure, and how correctly the sunscreen is applied.


Tips for Using Sunscreen

  • Use broad-spectrum products (providing protection against both UVA and UVB rays).

  • Apply generously 15-30 minutes before going outside.

  • Reapply every two hours, and after swimming, sweating, or towel drying.


Don't neglect to use sunscreen to protect your skin from the sun's harmful effects. This simple but effective measure can help maintain your skin's health.

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