How to protect of the solar radiation
The solar rays have beneficial effects on our health, but also cause damages, such as burns, waterfalls, skin cancer or aging premature.
To protect us of the sun can reduce the exposure time, to choose hours of smaller solar intensity, or to cover you with clothes and glasses and to use solar protectors.
Which is the most suitable solar protector?
When to choose a solar protector, you must take into account three main factors:
- The level of radiation ultra violet (UV) to that which are going to explain (enquiry predictions that offer the official meteorological agencies in its websites). To worldwide level the Index of UV radiation has been established (IUV) that it is a measure of the intensity of the UV radiation related to effects on the human skin.
The characteristics of your skin. According to the reply in the sun are established four types of skin, called phototypes:
- Phototypes 1 and 2 (FTI and FT II): milky or redheaded skins that are burnt without
- tan or they tan little.
- Phototype 3 (FTIII): chestnut trees with fair skin that are tanned, but are burnt.
- Phototype 4 (FT IV): dark skins that are tanned without burning.
- The exposure time in the sun.
If we combine the UV index and the type of skin obtain the Factor of Protection Plot (FPS) that need, can consult the following guiding table:
How to use the solar protector
Once picked the protector just we are using of proper shape, for this we must just follow facilitated instructions in the label.
General guidelines are:
- Apply the protector at least 30 minutes before explaining in the sun.
- The dose of application owes be abundant and applied in an uniform way.
- Renew the application every two hours and after every bathroom.
In addition, we must take into account that cosmetic products are regulated for the european legislation that it defines the Factor of Protection Plot (FPS). It is the index that us gives idea of the number of times that the protector us increases the time that can remain exposed to the sun without burning.
Is established four categories of protection: Cancellation (6.10), Average (15.20, 25), Registration (30.50) and Very tall (50+).
Myths on the suntan
“The suntan is healthy”.
FALSE. The suntan is a defense of the organisation against damages of the radiation.
“The suntan protects of the sun”.
FALSE. A broceado intense in fair skin, offers a very scant protection.
“In cloudy days, do not burn you”.
FALSE. A cloudiness little dense one just slows down 20% of the UV radiation; even the haze increases the exhibition to UV radiation
“Sunblocks allow taking more time the sun”.
FALSE. They should not use to prolong the exposure time.