3 mistakes you shouldn't make at the beach! According to a plastic surgeon
Mistake 1: choosing an SPF lower than 50
Even if for some dermatologists The choice of your Sun Protection Factor (SPF) depends on your exposure, your phototype (skin tone) and your ability to tan (i.e. your natural protection against UV rays). SPFs below 30 are not enough to limit sun damage to your tissues.
Index 50 is clearly a minimum even for dark skin (phototype 4 to 6). It's true that matte skin is naturally better protected from the sun, but it's more difficult to treat hypo- or hyper-pigmentation by laser or peel when you have a high phototype, because of the risk of a sunburn. reactive hyperpigmentation. That's why I recommend SPF protection even if you have dark skin.
Reactive hyperpigmentation is an increase in skin pigmentation in response to various situations such as inflammation, lesions, sun exposure or laser treatment! This complication is manifested by the appearance of darker spots on certain areas of the skin when the aim was to improve uneven skin tone.
For phototypes from 1 to 3SPF 50 plus is mandatory.
Mistake 2: Exposing yourself to the sun without waiting
Ideally, you should expose yourself to the sun 15 to 30 minutes after applying your photoprotection. This waiting time guarantees skin absorption, even application of the protective film and therefore effective at filtering U.V. A and B.
If you go out in the sun immediately after applying sunscreen, it won't have had time to set properly, and the protection it offers may be reduced. What's more, water or perspiration could easily wash the sunscreen away before it has time to penetrate the skin.
Mistake 3: Not applying enough sunscreen
Studies show that the average person uses between 25 and 75 % of the amount recommended by laboratories.
Why is it so important to apply the right amount of sunscreen?
The sun protection factor, or SPF, is calculated using a specific amount of sunscreen. So if you use less, you won't get the SPF indicated. More specifically, if you apply half the recommended amount of SPF 50, the maximum protection factor will be 25.
But what is the quantity of sunscreen used in the laboratory evaluation of spf? 2.5 mg per square centimetre of skin! What does that mean in plain English? It corresponds roughly to 8 teaspoons on all parts of the body.
Mon connaitre mes sunscreen recommendations
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