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  1. What’s the difference between UVA and UVB rays?

    Nov 25, 2025 · “UVB does not penetrate as deeply as UVA, but it can wreak havoc on the top layers of your skin,” George says. UVB damages skin cells and causes DNA mutations that …

  2. UVA Rays and UVB Rays: What’s the Difference? - WebMD

    Aug 17, 2025 · Find out the differences between UVA rays and UVB rays, discover the risks and health benefits, and learn how to protect yourself.

  3. UVA vs. UVB Rays: What’s the Difference? - Healthline

    Sep 12, 2019 · In this article, we’ll take a closer look at the key differences between UVA and UVB rays, how they affect your skin, and what you can do to limit sun damage.

  4. Ultraviolet Radiation | Radiation and Your Health | CDC

    Jul 16, 2025 · UV radiation is classified into three primary types: ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC), based on their wavelengths. Almost all the UV radiation that …

  5. UVB Radiation: Benefits, Risks, and Protective Measures

    Jul 23, 2025 · UVB radiation is a primary factor in common skin cancers. These include basal cell carcinoma (BCC) and squamous cell carcinoma (SCC), often found on sun-exposed areas …

  6. Understanding UVA and UVB | Mass General Brigham

    Sep 22, 2023 · UVB: Shorter UVB waves cause skin to burn. UVB is a major driver of skin cell mutations that cause skin cancer. You may see the UV Index noted on weather apps and …

  7. UV-B lamps - Wikipedia

    The main use of UVB lamps is as phototherapy lamp, meaning treating skin diseases with light. The diseases UV-B lamps treat are psoriasis, [2] vitiligo, lichen planus, atopic dermatitis …

  8. UVA vs UVB vs UVC: What's the Difference? - logoslighting.com

    Apr 10, 2025 · UVB (280-315 nm) has shorter wavelengths and is linked mainly to medical treatments, plant growth enhancement, and reptile lighting applications. UVC (100-280 nm) …

  9. The Difference Between UVA and UVB Rays - Paula's Choice

    UVB light has a wavelength of 290 nm to 320 nm, a much smaller range than UVA light. Although not as skin-penetrating or ever-present as UVA rays, UVB light is powerful: It’s directly …

  10. What is the difference between UVA and UVB rays?

    There are many different types of rays present in sunlight. The rays that are most damaging to our skin are called ultraviolet (UV) rays. There are two basic types of ultraviolet rays that reach the …