Experts notebook



The sun is the source of life and plays a vital role in development. However, it can be harmful to the body, especially to the skin. It is crucial to use sun protection.

Whatever your skin type, specific factors might trigger or lead to oversensitivity: Your skin reacts strongly when you’d rather it didn’t…

The brand Eau thermale Avène

The sun, friend or foe ?

The sun is the closest star to us. It is a source of pleasure but the sun's rays can have harmful effects on your skin.

We are particularly interested in two components of sun rays:

-UVAs: Penetrate deeply into the skin, can damage elastic fibres and are responsible for premature skin aging. They are also responsible for certain types of skin cancers.
-UVBs: Stimulate the production of melanin resulting in a tan. Can cause sunburn in the short term and premature skin aging in the long term. Can also increase the risk of certain skin cancers.

Skin reactions
Your skin can react to the sun in many ways and these reactions are often quickly visible…… based, in particular, on your skin's phototype. It will dictate your sun resistance. It is therefore key to know your phototype.
Short term:

Tanning is the body’s natural protection from UVs. The melanocytes from the lower layer of the epidermis produce melanin (a brown pigment) which absorbs sun rays and creates a shield from the sun.

Sunburn, a burn induced by UVBs, a sign of overexposure.
-First degree looks like a red area outlining the exposed zones. It is painful and burning.
-Second degree consists of water bubbles and blisters.
-Feeling faint, a headache, a fever, or dehydration from heatstroke can also be part of the symptoms.

Long term:

Overexposure and lack of protection might cause other problems.
Photodermatosis: These disorders are also called “sun allergies”, prickyly heat is the most common (eruptions and itching on the neckline and the forearms). « Polymorphic » light eruption and solar urticaria are more rare .

Sun spots : Brown spots that can appear on the most exposed areas (face and hands).

Premature skin aging: Visible on the face, neck, back of the neck, back of the hands, forearms

Skin cancer risk : Protect yourself from this real risk.

Check your moles and spots regularly.

Examining your skin regularly is crucial for early detection of melanomas. It is easy to do, alone in front of a mirror or with the help of a family member.



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