Skin care and UV Protection

Sun Rays

Anytime light interacts with some material, 3 things can happen. The light can be transmitted, it can be reflected, or it can be absorbed.
 If we say that light is “blocked” it means that it is either absorbed or reflected by the material.

The band of radiation of most concern from health perspective is ultraviolet or UV radiation. We cannot see the sun’s ultraviolet radiation, but it has a major impact on the human body

UVA rays (320 - 400 nm)

•Penetrate deeply into the skin
•Main cause of premature ageing
•Involved in skin cancer and suppression of immune system.

UVB rays (290 -320 nm)

•Responsible for sunburn and blistering of skin.
•Also linked to suppression of the immune system and the skin cancer.

UVC rays (200-290 nm)

•Most damaging, but do not reach the earth’s surface.

Sunscreen

Sunscreen use is an important part of the sun protection program. Used Properly, certain sunscreens help protect human skin from some of the sun’s damaging UV radiation