Fortunately, there is a growing awareness of the importance of using sunscreen as an indispensable measure to protect the skin from the sun. However, we must continue to promote that sun protection should be used all year round, as a further step in our daily skin care routine. Our skin is the most extensive organ in our body and protects it from external agents, such as the weather, in which the sun's radiation is found.
Therefore, in this article we would like you to find the guidelines to choose a good sunscreen this summer that allows you to enjoy the sun and the good weather wherever you are, but without risking your skin.
1. Be aware of the SPF
The Sun Protection Factor (SPF) is the amount of time we have to protect ourselves from the sun's rays according to our phototype or skin type. This Sun Protection Factor indicates the number of times that the photoprotection factor increases our skin's natural defense capacity against erythema or sunburn. For example, if a light skin takes 5 minutes to burn without protection, using a photoprotector SPF 30 we increase that time to 150 minutes (5' x 30 (SPF) = 150). After that time, sunscreen should be reapplied. But that's the theory! Keep in mind that factors such as sweating, bathing or towel-drying can remove some of this protection, so it is recommended that you reapply the sunscreen every two hours. If it is in spray format and with the new Wetskin technology as our Wet Skin SPF50, this reapplication action will not cost you anything!
2. Check the expiration date
Be very careful about using the sunscreen from previous years! Sunscreens expire. The PAO indicates how many months you can use the product once it has been opened. You should pay attention to the expiry date of the product and especially to the PAO, which refers to the period after the opening of the product. This is indicated on each cosmetic package on the back by the drawing of an open bottle which includes a number and the letter M.
Once we have opened the sunscreen, over time, its components lose effectiveness and it is not recommended to use them because we run the risk of not being protected from solar radiation.
Although the PAO indicates how many months you can use the product maintaining its warmth and effectiveness, once opened, you should always keep in mind the expiration date as this is the one that rules.
3. Better if it is water resistant
It is important to bear in mind that especially in summer when we are more in contact with water, sunscreen could be affected. We therefore recommend the use of resistanr or very resistant susncreen products. Similarly, remember to reapply the product every two hours or when you get out of the water and dry yourself with a towel to be completely protected.
4. UVA/UVB protection
A broad-spectrum protection will protect our skin against UVB and UVA rays. UVB rays are the best known. These rays are responsible for short-term effects such as reddening of the skin or the dreaded photo-sensitivity reactions associated with drugs, but they also trigger the tanning process. On the other hand, UVA rays are those that penetrate our skin most deeply. These are responsible for the long-term effects as they can alter our cells favoring, for example, the ageing of our skin, as well as problems and diseases such as photocarcinogenesis. For all these reasons it is important to choose a very high and wide spectrum sunscreen that will protect you from these two types of radiation.