Each year in Spain there are 50,000 new cases of skin cancer, most of them caused by the damage of solar radiation on the skin. Therefore, dermatologists and other health professionals, increasingly insist on the need to use sunscreens to protect the skin . But do you know which are the best? Do you know how to choose an effective one?
Types of sunscreens
There are numerous sunscreens , some more effective than others, but when choosing between one and another, we must take into account the benefits offered by the product, our needs and especially our skin type.
For this reason, it is essential to take into account the following key factors when buying a solar photoresist.
We can classify sunscreens in protectors or blockers. The protectors offer protection against ultraviolet B radiation, while the blockers , contain components that remain on the surface of the skin preventing in this way that UVA and UVB rays reach the skin. Therefore, it is always more advisable to choose those capable of blocking the penetration of UV rays (blockers).
To understand it better, let’s look at the two types of ultraviolet UV rays and what effects they have on the skin.
This type of radiation reaches the entire surface of the Earth, through glass and penetrate to the deepest layers of the skin.
Once they reach the deepest layers of the dermis, they generate free radicals that are the cause of the cellular alterations, being able to even cause cancer, and the premature aging of the skin.
UVA rays tan immediately but the tan lasts little.
They have a lower penetration capacity than UVA but are more reflective. It is the most harmful solar radiation since they burn the skin tissues. The ozone layer and oxygen in the atmosphere blocks 90% of this radiation. Can you imagine what would happen if this were not so?
Although the damage produced by UVB rays may be greater than that of UVA, it must be kept in mind at all times that both are risk factors for skin cancer.
Sun protection factor
It is recommended to choose a broad spectrum protector (indicated on the product labels), which means that it has the ability to filter both UVA and UVB rays. On the other hand, we must also pay attention to the sun protection factor (SPF), which is an indication of how long we will be protected from solar radiation.
Sunscreens with a high SPF do not protect more than the low ones, but offer protection for longer periods of time. As a matter of fact, as regards the level of protection, the difference in protection is minimal from an FPS30.
The recommended sun protection, according to the tendency to suffer from sunburn, skin type and tanning ability, the following protection:
- For people who suffer from burns easily and almost do not tan: SPF20 to SPF50.
- For those people who suffer from burns easily and tan very little: SPF12 to SPF30.
- People who suffer moderate burns and tans gradually: SPF8 to SPF12.
- If you suffer minimal burns and tan without problem: SPF4 to SPF8.
- Those people who do not suffer burns and tan without problem: SPF2 to SPF4.