Sunday, November 18, 2007

Sunscreen Selection Advice

The sun releases many kinds of radiation, each with a wavelength band that is specified. As soon as UVR reach the skin, it is readily absorbed by the skin molecules that intermingle more intensely with a specific wavelength. This act may result in damaging the skin proteins, lipids and cellular DNA, eventually leading to skin cancer. Ultraviolet radiation is broken into three types of wavelengths:
- UV-A: The longest wavelength is not absorbed by the ozone. It deeply penetrates the skin.
- UV-B: It is blocked partially by the ozone layer and is accountable for sunburns.
- UV-C: This is entirely absorbed by the atmosphere; it can only be encountered from artificial radiation sources.
1. Sunscreen
Sunscreens can absorb or redirect these harmful rays View the rest of this article


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