Protecting Your Skin From Sun Damage

April 21, 2009 by admin 

Why Use Sunscreen?
There appears to be some confusion about the messages people are getting about sunscreens and why they’re so important. Some use sunscreens to prevent sunburn, whereas others use sunscreens to improve sun tanning. Some wish to avoid the wrinkling associated with sun exposure, and others believe that sunscreens prevent all types of skin cancer, yet others seem to believe that…

What Is A Sunburn?
There are two major types of UV sun damage: UVA-type damage, with light wavelengths of 340-400nm, and UVC-type damage, which includes light wavelengths of up to 340nm. UVA-type damage can cause the skin to tan and may cause very weak burns, while UVC-type damage causes skin to burn.

Frequently Asked Questions About Sunscreen and Sunburns
How Much Sunscreen Should I Apply?
How Often Should I Apply Sunscreen When I’m Out In The Sun?
How Long Before Sun Exposure Should I Apply Sunscreen To My Skin?
Sun Protection Factor (SPF) - What Is It?
Why Is It Important To Use Sunscreens During Childhood?

Anti-Oxidants and Sun Damaged Skin
The UVA light is absorbed by both DNA as well as urocanic acid, the photo-chemical reaction produces oxidation of both DNA, nucleide acid, and protein, as well as lipids, this is known as oxidative damage. Anti-oxidants have been evolved to protect against.

Sun damage or photo damage produces both skin cancers as well as photo-aging. Photo-aging shows itself on the skin as wrinkling, scaling, dryness, and mottled pigmentation. Ultra-violet light is absorbed by skin, which in turn produces a photo-chemical reaction.

The UVA light is absorbed by both DNA as well as urocanic acid, the photo-chemical reaction produces oxidation of both DNA, nucleide acid, and protein, as well as lipids, this is known as oxidative damage. Anti-oxidants have been evolved to protect against, and reverse some of the damage produced by sunlight. An anti-oxidant mechanism is very advanced in plants that protect against the damage from sun exposure.

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