Sunscreens are products specially formulated to protect the skin from the ultraviolet (UV) rays emitted by the sun.
There are two main types of UV rays that can damage the skin: UVA rays and UVB rays. UVA rays can penetrate deep into the skin, causing premature aging, wrinkles and dark spots. UVB rays, on the other hand, can burn the skin's surface, causing sunburn and increasing the risk of developing skin cancer.
Sunscreens contain sunscreens that absorb or reflect UV rays, thus reducing the harmful effect on the skin. These sunscreens are often rated by their sun protection factor (SPF), which indicates the product's ability to protect the skin from UVB rays. Adequate sun protection requires the use of a sunscreen with an SPF of at least 30. However, it is important to remember that SPF only refers to UVB protection and does not indicate UVA protection. Therefore, it is advisable to use a broad spectrum sunscreen that offers protection from both UVA and UVB rays.
The correct application of sunscreens is essential to ensure maximum effectiveness.
It is advisable to apply sunscreen at least 15-30 minutes before sun exposure to allow the product to be absorbed by the skin. Also, it's important to reapply sunscreen every two hours or after swimming or excessive sweating, as sweat and water can reduce its effectiveness.
In addition to protection from the sun's rays, sunscreens also offer additional benefits for our skin. Many sunscreen formulas contain moisturizing and nourishing ingredients that help keep skin hydrated and soft. Some sunscreens also contain antioxidants, such as vitamin E and coenzyme Q10, which help counteract the damage caused by free radicals generated by UV rays.
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