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Exposed: You should know these myths about sunscreen!
Find out how thick the layer of sunscreen should be to ensure optimal protection from UV radiation. Tips for safe sunbathing.
Exposed: You should know these myths about sunscreen!
A strong call for safety in the sun
Updated on July 22, 2024, 8:59 a.m
Proper protection from solar radiation is crucial for the health of our skin. (symbol image)
© Getty Images/Nicolas McComber
In summer, the call for caution in the sun is not only sensible, but vital. Inadequate use of sunscreen can have far-reaching consequences. The products available on the market are not always sufficient, especially when it comes to correct application and use.
The role of sunscreen
Sunscreens are not just cosmetic products, they are essential tools to protect against harmful UV rays. UV rays are strongest in direct sunlight, especially between 11 a.m. and 3 p.m. Neglecting the fact that a certain amount of radiation remains even in the shade is a common mistake. UV protection is essential even on water, as water surfaces reflect UV rays.
The right application amount for effective protection
The question of the right amount of sunscreen causes many people to ponder. According to the Federal Office for Radiation Protection, a standard 200 milliliter bottle should be used up after just five applications in order to achieve the specified sun protection factor (SPF). To achieve this, around two milligrams per square centimeter of skin surface are necessary. For an adult, this is equivalent to approximately four heaping tablespoons of sunscreen for the entire body.
Shelf life and proper storage of sunscreen
The durability of sunscreen is an important aspect that is often overlooked. An unused product can typically last up to two and a half years. After opening, however, you should pay attention to the information on the packaging. A mark such as “12M” indicates that the product is safe to use for up to twelve months after opening. However, if the cream is superimposed or its consistency has changed, it is better to throw it away to avoid health risks.
The misunderstanding about pre-tanning in a solarium
A common misconception is that pre-tanning in a tanning bed protects the skin from the sun. Dermatologists like Christoph Liebich warn: The light in solariums consists mainly of UVA rays, which produce a quick tan but do not offer effective protection against UVB rays. In addition, tanning beds are prohibited for people under the age of 18 because the additional exposure to radiation increases the risk of skin damage.
The need for regular re-creaming
Another important point is the need for re-creaming. After bathing or sweating, it is essential to reapply sunscreen. However, reapplying does not extend the overall protection time of the sunscreen; it just helps maintain the protection you already have. A sun protection factor (SPF) indicates how long you can stay in the sun with protection. For example, if the skin's natural protection time is 10 minutes, an SPF 20 can increase this to 200 minutes, but only theoretically.
Which sun protection factor is recommended?
The Federal Office for Radiation Protection recommends a sun protection factor of at least 30 for children. Adults should use an SPF of 20 or higher, especially in regions or during activities where UV exposure is increased, such as in the mountains or near the water.
In summary, it can be said that the correct use of sunscreen is essential to prevent skin damage. Information about the correct use, amount and choice of sun protection factor can help you make conscious decisions and potentially minimize health risks.