What Is A Sun Block? How To Use It Properly?
                     What Is A Sun Block? How To Use It 
Properly?
James Bolte
Writer at Bestinfo-log.com, made many 
article contributions to 
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Sunblock, also known as sun cream or sunscreen, is a product designed to protect the 
skin from the harmful effects of the sun’s ultraviolet (UV) radiation. UV radiation from 
the sun can cause sunburn, premature aging of the skin, and increase the risk of skin 
cancer.
Sunblocks are formulated with ingredients that either physically block or chemically 
absorb UV radiation. Physical sunblocks contain ingredients such as titanium dioxide 
and zinc oxide, which reflect and scatter UV radiation away from the skin. Chemical 
sunblocks contain ingredients such as avobenzone, oxybenzone, and octinoxate, which 
absorb UV radiation before it can penetrate the skin.
What determines effectiveness of the sunblock?
The effectiveness of sunblock depends on several factors, including the type and 
concentration of active ingredients, the application method, and the frequency of 
application. 
 It is important to use sunblock correctly and reapply it regularly to ensure adequate 
protection from the harmful effects of UV radiation.
 Is a sun block good to use
 Yes, sunblock is good to use as it can help protect your skin from the harmful effects 
of UV radiation from the sun. UV radiation can cause skin damage, premature aging, 
and increase the risk of skin cancer. Sunblocks are formulated to block or absorb UV 
radiation, thereby reducing its harmful effects on the skin.
 Sunblock products availability by various forms
 Sunblocks are available in different forms, including lotions, creams, sprays, and 
gels. They are typically rated according to their Sun Protection Factor (SPF), which is 
a measure of the product’s ability to block UVB radiation. The higher the SPF, the 
greater the protection against UVB radiation.
How to apply the sunblock?
Sunblocks should be applied to all exposed skin areas, including the face, neck, and 
arms, at least 15-30 minutes before exposure to the sun. Reapplication of sunblock is 
recommended every 2 hours or after swimming or sweating. It is important to use 
sunblocks as directed and to seek shade or wear protective clothing in addition to 
using sunblock to further reduce UV radiation exposure.
Is sunblock safe to use?
Sunblock is generally considered safe when used as directed. The active ingredients in 
sunblock have been extensively tested and are regulated by various government 
agencies, such as the U.S. Food and Drug Administration (FDA) and the European 
Union (EU) regulatory agencies.
 Overall, it is important to choose sunblock products that are labeled as “broad-
spectrum” (meaning they protect against both UVA and UVB radiation), have a sun 
protection factor (SPF) of at least 30, and are approved by regulatory agencies. It is 
also important to use sunblock correctly and reapply it regularly, as directed on the 
product label, to ensure adequate protection from the harmful effects of UV 
radiation.
 Limitations of using sunblock
 However, it is important to note that sunblock alone may not provide complete 
protection from UV radiation. It is recommended to seek shade during peak sun 
hours, wear protective clothing such as hats and long-sleeved shirts, and avoid 
prolonged exposure to the sun. Additionally, it is important to apply sunblock as 
directed, reapply as needed, and use a broad-spectrum sunblock that protects 
against both UVA and UVB radiation.
 In summary, sunblock is a useful tool in protecting your skin from the harmful 
effects of UV radiation. However, it should be used in combination with other sun 
protection measures for optimal protection.
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