What is SPF?
- 1 min reading time
You hear and see everywhere that you should use SPF every day, but what exactly is SPF?
What does SPF mean?
SPF stands for Sun Protection Factor. In other words, how well it protects against UV radiation. This can be done by reflecting or absorbing the radiation. That SPF factor only stands for protection against UVB radiation. UVB radiation causes you to burn and your skin to turn red. Most sunscreens also protect against UVA radiation, but not all. UVA radiation penetrates deeper into your skin and is partly the cause of skin aging and skin cancer.
There are two different types of filters that can protect you from UV radiation: mineral and chemical.
Mineral filters
This filter reflects UV rays and forms a layer over your skin. This protects immediately after application. It is suitable for all skin types, including people with sensitive skin. Sunscreens with these types of filters are often visible on the skin and can turn white. Finally, they can easily be removed with water and are therefore usually not waterproof.
Chemical filters
These filters absorb UV rays and penetrate your skin. A disadvantage is that they only protect 15 to 30 minutes after application. They are suitable for all skin types, sometimes it can cause irritation in very sensitive skin. Furthermore, products with these filters are often waterproof and sweatproof, so very suitable for your workout outside! Moreover, they often do not shine and are transparent, so they do not cause a white haze.
Which filter should I choose?
Both types of sunscreens offer good protection. So it depends on what you find important. In any case, remember to keep applying regularly, apply, apply, apply!!
Click here for Do's and Don'ts of SPF.
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