Facing the sun, all skin types do not react the same way. Age, complexion, or protection many criteria to account

Everyone knows that the sun is good in small doses. To help you better support, we review all the ways to tan safely.

On-site allergy occurs, what to do?

Third day of vacation, redness and itching occur on the neck: the benign summer light eruption, allergic fairly common among young women, even dull skin. Should be discontinued exposure and consult a doctor. It will advise the application of corticosteroid ointment and absorption of an anti-histamine. Relief is fast, but for eight days we must remain covered. And then protect with a cream screen IP 20.

Sea, mountain, should change SPF?

Higher up in altitude, there are many more UVB (4% every 300 m). It is therefore necessary to use a high protection factor (SPF 25, Summer 3000 m). Similarly, the closer to the equator, the more there’s UVB (five times higher in the tropics than in France). Clearly, if you catch a sunburn in France in two hours, thirty minutes will suffice in the tropics. We must reduce the exposure time and increase the degree of protection (IP 25 in the tropics). Consider also the reflection of the rays. The edge of the sea, the sand and water, it is stronger than in the countryside. UVB, the most harmful penetrate slightly into the skin but are responsible for sunburn. UVA, less dangerous at the time, go into the deeper layers of the skin and accelerate skin aging. Visible rays, that is to say light, have no particular effect on the skin. Infrared heat only, but combined with UVB, they can also cause sunburn cruel.

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Less ozone, less protection

There is much talk of the decline of the ozone layer in the atmosphere that filters the sun’s most harmful. If the observations of researchers over the past ten years, do not allow to draw definite conclusions, one wonders however if the passage of these rays is not the basis of the current spate of sun allergies and even some cancers skin.

With clear skin, you should make a cross on tan?

Reason says yes, but how boring to always be reasonable! So as to limit the risks. Like it or not, we will never abolish this injustice redheads and blondes very white skin have a solar capital lower than brunettes. Fortunately for them, containing a solar tanning can cheat causing a nice tan anyway, without having to expose themselves unnecessarily hours. Anyway take sunbathing in homeopathic doses. The first three days, five minutes with a 20-screen index. The next eight days, ten minutes with a 15 index. Finally, the rest of your holiday, a half-hour of sunshine, with an index 10.

Tan faster, is it risky?

Many brands offer solar products containing dynamiters tanning. They provide the substances needed to make melanin, natural color of our skin. Others rely on the essence of citrus. Now associated with filters perfectly mastered, these sunscreens do not pose a risk. Thanks to them, a week is sufficient to acquire for normal skin complexion honey.

Acne Cesaro: Some steps to take?

Often irritating, local treatment against acne remove any sebum, thus the natural protection of the skin. It is then highly sensitive to wind, sun. In addition, some treatments can be photo sensitizers. Therefore, the first fine days, dermatologists advise a different therapy, more compatible with the sun. But treated or not, we must moisturize and protect skin with acne a non-greasy, a high index (15 minimum).

As for Cesaro, it must also be careful. This is especially the infra-red heat dilates the blood vessels which already apparent. Also, it is better not to seek the sun at all costs, even if it camouflages redness and use a special sunscreen containing anti infrared filters.

Can we continue applying a wrinkle cream with vitamin A acid?

No, because vitamin A acid is photo sensitizing and weakens the skin. We might then sunburns and brown spots. We must stop the application from a month before.

After collagen injections or cosmetic surgery, there’s there risks?

Three days after injections of collagen, n there’s no problem to put in the sun, as this practice is not photo sensitizing. However, after a cosmetic surgery everything is different. The skin has suffered some sort of trauma. We must give him time to recover by applying the scars or until they are practically visible, sunblock, preferably stick.

How to avoid the nasty brown spots?

These spots have several origins. On the face, they are often a consequence of hormones in large quantities during pregnancy or oral contraceptives. The rest of the body, other leaders are most of the time, some antibiotics, untreated perfumes, etc. Should also beware of sunburn by applying sunscreen with high. If you are expecting a baby, do not expose yourself too long, even though the face is protected by a special cream sunblock.

Children, regardless of how solar age?

On a baby less than a year, it is not recommended to apply a cosmetic containing chemical filters. So do not leave in direct sunlight. Not too long sheltered under an umbrella: it would still receive 20% of the reflected rays. The child’s skin is fragile, especially up to 9 years, since its natural protection system is not yet very efficient. Even playing in the water or on the beach, there is a significant exposure to sunburn. Do not hesitate to give him often suntan lotion, sunscreen or index 10 minimum, preferably waterproof, with mineral filters. After two hours of play in the sun, put on her T-shirt. Do not worry, there will be enough sun to have taken the dose of vitamin D needed for its growth since it takes only 15 minutes per day.