Using sunscreen is essential to use when you plan on spending some time outdoors. The sun gives off UV rays that can be harmful to your skin. Sunscreens can help to filter out the UV radiation by acting as a physical barrier that reflects the light away from the skin. The organic chemicals in sunscreen will absorb UV rays so that your skin doesn’t. This combination of blocking and absorbing the UV rays help to combat the cause of skin cancer. SPF within sunscreen referes to how much longer it takes for UVB rays to redden the skin sunscreen compared to without sunscreen so be sure to get a high SPF for a greater chance of protection.
Sunscreen’s SPF is only effective for two hours after application. It is recommended to reapply your sunscreen every couple of hours to get maximum protection. It is especially important to refresh sunscreen in burn and skin cancer-prone areas inclusid the ears, forehead, cheeks and the nose.
When choosing the best sunscreen figuring out the right level of SPF can be confusing. SPF, Sun Protection Factor, specifies how effective a sunscreen is at protecting your skin from sunburn-producing UVB rays. Products with SPF 15 block up to 93% of UVB rays, SPF 30 blocks up to 97% of UVB rays and SPF 50 blocks up to 98% of UVB rays. There are also products with SPF 100 which blocks up to 99% of UVB rays. It’s also important to choose a broad spectrum sunscreen. Broad spectrum sunscreens provide protection from both UVA and UVB rays. UVA rays which penetrate the skin more deeply than UVB rays, may play a part in skin aging and/or wrinkling. The American Academy of Dermatology recommends that you wear at least SPF 30 broad spectrum sunscreen and reapply according to the label to protect your skin from sun damage.
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