If you've recently bought a sunscreen, you might have noticed the rapid spread of products with a high sun protection factor (SPF). Just a few years ago, it was difficult to find a sunscreen with an SPF higher than 45. Now, store shelves filled with products of different companies, where the level of SPF 70+, 80+, 90+. A recently released by Neutrogena sunscreens with SPF 100+. But is it really these funds with high SPF is better than those that have only 15?

Levels of Protection

SPF means the ability of a sunscreen to block UVA in that cause sunburn How to protect your skin from sunburn? But not UVA, which penetrates deeper into the skin and cause her harm. And the rays A and B shall bear the risk of skin cancer. It depends on the amount of time spent by a person in the sun as it can burn quickly if you do not use sunscreen and if you use them.

SPF - this is not a friendly customer number. It is logical to assume that the agent with SPF 30 is two times better than the agent with an SPF of 15, and so on, but this is not true. Products with SPF 15 blocks about 94% UVA V and with SPF 30 - about 97% of rays B, with SPF 45 - about 98%. Thus, agents with a higher SPF block little more UV B rays, but none of them provides 100% protection.

Products with SPF 15 is good if it is correct to use, but it is better to use means with SPF 30, as few people spray on the skin in sufficient quantities and as often as you need it. The difference between products with high and middle-SPF is not large. But the means with high SPF provide better protection against long-term skin damage and skin cancer associated with sun exposure.

Find a sunscreen that is effectively protected against UVA is much more difficult, but very important. The radiation from UV rays but penetrates into the deeper layers of the skin and leads to wrinkles and skin cancer Skin cancer: causes and prevention . About 95% of UV radiation to which we are exposed is the radiation from the rays A.

Many use chemical sunscreen filters that block UV rays And that gives you minimal protection. This is because avobenzone or Parsol 1789 and meksoril, two filters A rays, quickly disintegrate and lose their effectiveness in the sun if they are not fixed. The process of fixing is very complicated and several companies proved that they were able to achieve this. Therefore, experts recommend the use of sredvta Neutrogena c geliopleksom and means LoRoche Posay by L'Oreal with avobenzone. Geliopleks - a fixer that allows avobenzone not disintegrate.

The best way to be sure of their protection from the sun - it is often applied on skin. You can not simply put means in the morning and forget about it for the whole day. It does not matter if it means with SPF 800 best blocking rays A few hours later it disappears.

Whether you choose a product with high SPF or not, their days are numbered. Office of the Food and Drug Administration (FDA) is currently working on a new labeling system protection from the sun. They plan to limit the application to SPF 50+. Company for the production of sunscreen Do the equal protection of sunscreen?   will have 18 months at his disposal to change the labeling if it happens. If they provide scientific evidence that their tools provide the level of protection which they claim, they can continue to produce products with such markings.

How well the means of protection against the sun?

To do this, we conducted a study of five popular tools with SPF 45+ and five funds with SPF 30-45. The best turned out to Walgreen's Continuous Spray Sport SPF 50, Coppertone Water Babies SPF 50, Aveeno's Continuous Spray SPF 45 and Bull Frog's Marathon Mist Continuous Spray SPF 36.

However, experts have questioned the safety of the use of funds on the basis of chemicals.

Which means you would have chosen, experts recommend using water repellents that are applied in abundance on the skin for half an hour before going outside. The tool must be applied again at least every two hours or after swimming, toweling or if you are sweating.

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