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Dermatology

UVA vs. UVB Rays (and Why You Want a Sunscreen That Blocks Both)

These two UV rays cause different types of skin damage.

Lauren Smith, MASarah Gupta, MD
Written by Lauren Smith, MA | Reviewed by Sarah Gupta, MD
Updated on April 10, 2025
Reviewed by Sarah Gupta, MD | April 10, 2025

Broad-spectrum sunscreen protects against two key types of ultraviolet (UV) rays: UVA and UVB. Both UVA and UVB rays affect the skin, but in different ways. In this video, learn the effects of UVA and UVB radiation and how to protect your skin.

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Lauren Smith, MA
Written by:
Lauren Smith, MA
Lauren Smith, MA, has worked in health journalism since 2017. Before joining GoodRx, she was the senior health editor and writer for HealthiNation.
Sarah Gupta, MD
Reviewed by:
Sarah Gupta, MD
Sarah Gupta, MD, is a licensed physician with a special interest in mental health, sex and gender, eating disorders, and the human microbiome. She is currently board certified by the American Board of Psychiatry and Neurology.

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