Sunscreen: for protection from head to toe

This is not a scoop: sun protection is essential for our skin - especially in summer and especially at times when the sun is the strongest (between 11h and 16h). But do you know how sun creams work, and how to choose them?

In our article, you are told everything so that you can offer optimal protection to your skin.

Sunscreen: what's the use of what?

In the short term, sunscreen helps prevent sunburn by protecting the skin from UVB rays.

In the long term, sun products reduce skin aging by protecting the skin from UVA rays, but also limit the risk of skin cancer.

But what is the difference between these UV (ultraviolet) rays? Why should we protect our skin against these rays? How exactly do solar products work? And what criteria must be taken into account when choosing a sunscreen?

Zoom on solar products and their use!

UVA and UVB: what's the difference?

UVA and UVB differ in intensity, wavelength and ability to penetrate the skin.

> UVAs represent 98% of ultraviolet radiation. They do not heat, but penetrate to the dermis, causing the formation of free radicals, and even altering the genetic code of the cells. The excess of UVA is at the origin - among others - of skin aging. UVA increases the risk of skin cancer.

> UVB represents 2% of UV. They are very energetic, but penetrate little into the skin. They are responsible for tanning, but also for sunburn. The UVB damages the superficial layers of the skin (the epidermis is refined, pigmentation spots appear). They can also promote the risk of skin cancer.

Quiz: How to protect yourself from the sun?

Do you know what to do to protect yourself from the harmful effects of the sun? Test your knowledge!

Read also :
> I caught a sunburn: what to do?
> Quiz: how to protect yourself from the sun?
> How to use sunscreen properly: the advice of the dermatologist

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