UV 400 means nearly 100% protection against UV rays, includig UVA and UVB rays, from 400 nanometers. Your guide to sport sunglass lens tints Use this handy sunglass lens tint guide to help you determine what len
Sunscreens are products that help protect the skin from the sun’s harmful ultraviolet (UV) rays. There are two types of UV rays that reach the earth’s surface: UVA and UVB. UVA are long wavelength rays that can penetrate through glass and can reach deep into the skin surface. Although ...
Degree of harm to human body: more than 95% of the ultraviolet rays exposed to daily skin are UVA, so it is the most harmful to the skin. UVA can attack the dermis through the epidermis, causing severe damage to bone collagen and elastin in the skin; Moreover, the self-protection abil...
UVA and UVB rays affect your skin in different ways. In this tutorial, find out the difference between them and how to make sure you’re protected from both.
Mineral sunscreens protect your skin from broad-spectrum UVA/UVB rays. Since they work like a shield sitting on the surface of your skin, they may leave a visible white cast when applied. But don’t let the white cast steer you away—there are many benefits to this type of sunscreen!
"Daily SPF will help reduce the risk of skin cancer, pigmentation, fine lines and wrinkles by blocking the short UVB and the longer UVA wavelengths,” explains Laftah. If the reason you’re not already wearing it everyday is because you’re worried about getting breakouts from SPF, you jus...
UV 400 protection lenses block wavelengths up to 400 nanometers. They also screen out 75% to 90% of visible light from the sun, which penetrates the Earth’s atmosphere and reaches your skin and eyes in the form of UVA and UVB rays. ...
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UVA, or near UV (315–400 nm) UVB, or middle UV (280–315 nm) UVC, or far UV (180–280 nm) The guide goes on to state, "Radiations with wavelengths from 10 nm to 180 nm are sometimes referred to as vacuum or extreme UV." These wavelengths are blocked by air, and they only...
Wavelengths of solar and atmospheric radiation The complete spectrum comprises the ultraviolet (UV), visible (Vis) and infrared (IR) wavelengths. However, these wavelength ranges need to be sub-divided depending on the individual application fields. Best known are the prismatic colors of visible li...