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Love the sun? Sorry to tell you, but it doesn't love you. Most premature skin aging and almost all skin cancer is caused by sun exposure. Even tanning beds will age you. The only safe tan is a fake tan from a jar, and even that means slathering your skin in chemicals.
Sunscreens are lotions, gels, or sprays that either reflect or absorb the ultraviolet radiation in sunlight to protect the skin from damage. Sunscreens come in a wide variety of formulations and strengths, noted as an SPF, or sun protection value (a very imperfect measure based on the time it takes to burn).
Most dermatologists recommend using a preparation with a SPF of 15 or greater, while still stressing that there is really no safe level of UV exposure.
The most important factor in determining how well a sunscreen works is how likely you are to actually use it. If it stings or is so greasy you can't stand it, most of it will probably end up inside of the tube rather than on your skin. Also, some of the more powerful sun blockers contain harsh chemicals that can be absorbed into the skin and possibly produce toxic side-effects. |
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Several studies have suggested that most people only apply about 1/4 to 1/2 the amount they need to achieve the advertised sun protection factor.
Be aware that while ultraviolet type B (UVB) rays cause reddening or pain, ultraviolet type A (UVA) rays do not. UVA has been implicated a major cause of malignant melanoma and skin aging, and yet some highly-rated sunscreens barely protect for this damaging wavelength. It's thus better to limit your exposure to the day' strongest rays no matter what SPF you're using.
The only foolproof way to avoid the sun's ultraviolet is to never go outside without a hat, sunglasses, full set of clothes, and maybe even an umbrella. It's not the nicest way to enjoy your life.
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