How to Choose a Sunblock

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Steps

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    Look for a waterproof sunblock if you plan on being in the water or if you sweat a lot. It can take about 80 minutes for a waterproof sunblock to 

  3. Excessive or unprotected exposure to the sun can lead to sunburn, wrinkles, skin degeneration and even skin cancer. It is important that you protect your skin from sun exposure on a daily basis to prevent skin dangers. There are many different types of sunblock available that are designated by the sun protection factor (SPF), ingredients, resistance to water and whether or not they block UVA or UVB rays. Many sunblocks are also designated by age groups, such as those that are to be used by children, teens and adults. Choosing the correct type of sunblock for your use and type of skin is important to maintaining healthy skin. Here are a few steps on how to choose a sunblock.
  4. wash off you if you are covered in water. A waterproof sunblock will ensure that you have protection from the sun even when you are enveloped in water.
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    Find a sunblock that is labeled "broad spectrum," which means that it protects from both the sun's UVA and UVB rays. UVA rays cause wrinkling and aging of the skin, while UVB rays cause sunburn, but both UVA and UVB cause skin cancer. It is best to be protected from both, however, many sunblocks only protect against UVB rays.
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    Choose the sun protection factor (SPF) that works best for you. Sunblocks are primarily determined by their SPF number. The higher the SPF the longer you will be protected from UVB rays before your skin becomes red and starts to burn. It is recommended that you choose a sunblock with an SPF of at least 30.
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    Check the ingredients on your sunblock. There are certain chemicals that absorb UVA and UVB rays so that your skin does not absorb them. Mexoryl SX, Mexoryl XL and Parsol 1789 are some chemicals that protect against UVA rays. Octinoxate, Octisalate and Homosalate are chemicals that protect against UVB rays. Look for a sunblock that contains these chemicals for the best overall protection from both types of rays.
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    Consider choosing a sunblock that contains zinc oxide or titanium dioxide.These ingredients are able to reflect UV rays so that they are not absorbed by your skin. They have been shown to be safe and effective ingredients in preventing negative effects of the sun.
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    Avoid sunblocks that contain extracts of fruits or nuts. They have not been shown to block the sun from irritating your skin and many of them can cause allergic reactions.
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