With the arrival of warmer days, sun exposure becomes more frequent and, with it, the concern also grows in protecting the skin. Applying good sunscreens is essential to prevent burns, premature aging and other consequences of ultraviolet radiation. However, not all products offer proper protection.
FPS: What is and how it works
The sun protection factor (SPF) indicates the level of protection against UVB rays, mainly responsible for solar burns. According to the dermatologist Marta Ribeiro Teixeira to News to the Minute, FPS represents the time the skin may be exposed to the sun without burning compared to the absence of protection.
For example, solar protector with SPF 30 allows the skin to be up to 30 times longer in the sun without burning. However, this value is theoretical and varies depending on the intensity of radiation, skin type, amount of product used and the frequency of reapplication.
Protectors with fps less than 30 are ineffective
According to the same source, Marta Ribeiro Teixeira states that products with FPS less than 30 do not offer effective protection. “Solar protectors under 30 do not protect the skin and are not recommended,” he said.
The expert stresses that, although a FPS 30 already offers reasonable protection, it is preferable to opt for SPF 50 or higher, especially in people with light skin, skin cancer history or conditions such as hyperpigmentation.
Also according to the same source, the difference between SPF 30 and FPS 50 is significant and can be decisive in the prevention of long -term skin damage.
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The importance of protection against UVA rays
In addition to UVB, UVA rays are also harmful, penetrating the skin more deeply and contributing to premature aging and the risk of cancer. As reported by the minute, protection against grapes is not expressed with a specific number, but is mandatory by law.
European standards require solar protectors to ensure grape protection equivalent to at least one third of the indicated FPS. Thus, a product with SPF 30 must ensure a minimum grape protection corresponding to 10.
The same source underlines the importance of choosing solar protectors that specifically refers protection against long grapes and grapes, as this type of radiation has cumulative and silent effects on the skin.
How to use correctly
The dermatologist warns of the need to apply sunscreen every day, regardless of the season. According to the same source, UV radiation is present even on cloudy or cold days, so protection should be daily, even in winter.
To be effective, the product should be applied enough, about 30 minutes before sun exposure, and reapplied every two hours or whenever there is excessive perspiration or contact with water.
Other care to be taking
The same source also recalls that products kept from the previous summer may lose effectiveness. It is essential to respect the expiration date and ensure that the protector was stored properly.
According to the zones such as the face, neck, ears and hands should be specially protected as they are often forgotten but also vulnerable to solar radiation.
The choice of a protector suitable for skin type and sun exposure conditions is decisive to ensure effective and safe protection, the dermatologist concludes.
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