Sundicator.net

An explanation of what sunscreens are and how to use them.

Sunscreens are important skin-care products used to prevent photoaging and skin cancer. Until recently it was believed that blocking UVB radiation and sunburn were the only measures needed to prevent sun damage. The SPF rating was developed to measure the ability of a sunscreen to block UVB radiation. Now we know that UVA radiation also contributes significantly to damaging the skin. These chemicals are used in sunscreens to absorb UVA radiation.

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It’s also important to pick the right type of sunscreen. Sabini recommends an SPF (sun protection factor) higher than 15. The SPF is a measure of how long the product allows you to stay in the sun before your skin begins burning. … typically exposed to the sun , “research shows that people who spend a lot of time in the sun are much more likely to get melanoma.” Dark-skinned people often believe that because they don’t sunburn easily, they don’t need to use sunscreen . …

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Most of us are familiar with the sun protection factor (SPF) ratings that rank protection against the UVB ultraviolet rays that cause sunburn and skin cancer. Many, however, are unfamiliar with UVA, ultraviolet rays of a different wavelength that cause … Leading brand-names scored the worst: None of Coppertone’s 41 sunscreen products met the study’s criteria for safety and effectiveness; and between the second and third largest manufacturers, Neutrogena and Banana Boat, …

Originally posted here:
health newsz: Sunscreens “Blistered” By Nonprofit Study