Information AboutMexoryl |
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In order for a sunscreen to be truly effective it must protect skin from both UVB rays, which cause sunburn, and UVA rays, which cause long-term damage but not short-term impact. There is no SPF rating for UVA protection. The UVB range is 280 to 320 nanometers, and the UVA range is 320 to 400. Mexoryl protects against UV wavelengths in the 290–400 nanometer range, making it the only chemical known to block all UVA rays and some UVB rays. Mexoryl can protect skin from sunburn by itself, but it must be combined with other active sunscreen agents to gain an official SPF rating. Sunscreens based on mexoryl have been available in Canada , Europe and other parts of the world since 1993, but it is still awaiting FDA approval for sale in the United States . See also: Sunburn , UVB EXTERNAL LINKS
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