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What is UVR?
Ultraviolet radiation is a portion of the sun's electromagnetic energy spectrum. It is commonly split into three bands: UVC, UVB, and UVA.
- UVC rays are completely absorbed by the ozone and oxygen layers and do not reach the earth's surface.
- Most UVB rays are absorbed by the ozone layer, but some do reach the earth. Even in small amounts, UVB rays cause most sunburns and the vast majority of skin damage, including premature aging and skin cancer. The intensity of UVB rays can vary depending on the time of day, the season, latitude, altitude, etc.
- UVA rays penetrate the skin's surface deeper than UVB rays, harming DNA and compromising the immune system. Affecting the human body on a cellular level, this damage can destroy your natural defense to cancer.
It's important to understand that the intensity of UVA rays during an early winter morning in Seattle is similar to the intensity of UVA rays experienced at noon during summer in Miami. UVA rays are constant and direct, so we need protection year-round regardless of where we live. |
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