It is important that your skin is exposed to sunlight but this is useful only when the right amount of sunlight is exposed on your skin. Keeping your skin healthy is important. The sunlight is absorbed by the skin to produce Vitamin D which is very important for human health. If your skin is overly exposed it will be harmful to the skin’s structure and condition. By limiting the time you expose your skin to sun and wearing protective clothing and applying sun protection products which are formulated for your skin type condition and needs.
First, let’s understand what sun is made up of. The rays of sunlight are composed of a spectrum of rays such as ultraviolet rays, visible light, and infrared light.
Ultraviolet light is also known as UV rays. These lights are invisible to human eye and are emitted in three different forms: ultraviolet A, ultraviolet B, and ultraviolet C. Ultraviolet light have shorter wavelength when compared to visible light. Of all the ultraviolet light, ultraviolet Crays have the shortest wavelength.
50% of sunlight spectrum is composed of visible light. As the name suggests it is the only part of sunlight which is visible to human eye.
Infrared A and infrared Brays have the longest wavelength. Similar to UV rays these are also not visible to human eye. This accounts for the remaining 40% of sunlight.
Effects Of Sunlight On Skin
The skin’s outermost layer has cells that contain a pigment known as melanin which protects the skin from the sun from harmful ultraviolet rays. This can burn the skin and over time reduce the elasticity which will make the human skin look aged. When you expose your skin to sunlight it starts tanning because when your skin is exposed to sunlight it starts producing more melanin and skin starts turning black.
If your skin is exposed too much to UV rays it might cause sunburn. The UV rays penetrate outer skin layer passing into deeper layer damaging and killing skin cells.