UV Light

Used worldwide and updated daily, the UV index informs us about the strength of the sun's rays that reach the ground. It thus serves to alert us to the risks that excessive sun exposure can pose, and to adopt the right sun behaviour to avoid any skin damage. Low, moderate, high, very high, extreme... let's explore together what this index is, what it precisely means and how to interpret it.

Thesalicylic acid is a beta-hydroxy acid (BHA), known for its keratolytic action that promotes desquamation, or the removal of dead skin cells. Many ideas circulate about it, particularly about its supposed photosensitising power. However, this is not the case!

Exposure to the sun is an action full of contradictions. Indeed, it presents increasingly well-identified harmful effects (sunburn, burns, cancer risks...) but also several virtues, detailed in this article.

Due to the inability to see UV rays, some people underestimate their harmfulness. For most, cloud cover reduces a person's exposure to UV rays, and where sun protection practices (sunscreen, protective clothing, etc.) would then depend on the forecasts of solar UV. They thus believe they can avoid skin photoaging and skin cancer in cloudy weather. But what is the reality?

At home, in the car, or behind your sunglasses... glass appears to protect from the sun's rays. This common belief is partly true as glass does block the passage of UVB rays responsible for tanning. However, this is not the case for UVA rays. Let's explain.