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Whether you're a fan of a transparent spritzer or prefer traditional lotions to white cream, few of us apply enough sunscreen to protect ourselves, according to the latest research.
A new study from King's College London showed that protection from the sun's UV rays was only significant when sunscreen of an included thickness was applied between 1.3 and 2.0 milligrams per square centimeter
According to previous studies, most people only apply a layer of 0.75 milligrams per square centimeter. which provides only 40% of the protection you should get from a particular SPF (sun protection factor).
Most skin cancers are caused by DNA damage from the sun's UV rays.
It is applied in a manner that is very similar to the daily use of most people, the researchers measured the amount of damage to the DNA in the skin of 16 volunteers who were wearing thicknesses The volunteers were divided into two groups, one receiving a single dose of UV radiation to mimic exposure to sunlight while wearing a generally thin layer of sunscreen, and l 39; another receiving many doses over a period of 5 days. during the holiday season, during which you can consume the recommended amount of sunscreen.
Volunteers received radiation within 15 minutes of applying sunscreen, and skin biopsies were taken immediately after UV exposure
. Volunteers who wore their sunscreen to the degree of thickness recommended by the manufacturer had the most important protection against sun damage even after being exposed to high doses of UV for a long time .
Is it time to give up factor 15? KCL scientists recommend people to wear a higher SPF (at least 30 FPS) to compensate for the usual thin application.
"Since most people do not use sunscreens tested by manufacturers, it's better to have SPF than they deem necessary," said Antony Young, director of the company. 39; study and professor of experimental photobiology at King's College London.
The SPF ratings are given by the manufacturer assuming sunscreen is applied at least 2.0 milligrams per centimeter
"For example, if you get SPF20 and you use less than 0.75 milligrams per square centimeter, your level of protection could be as low as SPF4. "
Although sunscreen can be expensive, it's important not to skimp – be sure to cover it with a thick layer! [19659013]
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