How to Use sun protection factor in a Sentence

sun protection factor

noun
  • Wear sunscreen with a sun protection factor (SPF) of at least 30.
    — Casey Gallagher, Health, 15 Apr. 2025
  • All sunscreens and sunblocks come with an SPF (sun protection factor).
    — Claire Gillespie, Health, 24 Mar. 2023
  • Wear sunscreen with a sun protection factor (SPF) of at least 30.
    — Carrie Madormo, Health, 24 Oct. 2025
  • The recall includes all can sizes and all levels of sun protection factor, or SPF.
    — Linda A. Johnson, orlandosentinel.com, 15 July 2021
  • Every bottle is labeled with an SPF or sun protection factor.
    — Laura Baisas, Popular Science, 22 May 2025
  • Wear a broad-spectrum sunscreen with a sun protection factor of 30 or higher and reapply as necessary, at least every two hours.
    — Angelica Bottaro, Verywell Health, 25 July 2025
  • Apply sunscreen with a sun protection factor (SPF) of at least 30 every day, even on cloudy days.
    — Sarah Bradley, Health, 20 June 2025
  • The higher the sun protection factor number, the higher percentage of UVB rays are blocked.
    — Catharine Malzahn, Glamour, 11 Apr. 2025
  • One way to protect your skin is to use a broad-spectrum sunscreen with a sun protection factor, or SPF, of at least 30, even on cloudy days.
    — Tribune News Service, The Mercury News, 21 June 2024
  • Cream foundation and the importance of SPF (sun protection factor).
    — Renan Botelho, WWD, 7 Aug. 2024
  • To help prevent them from forming, wear a broad-spectrum sunscreen daily with a sun protection factor (SPF) of at least 30.
    — Laura Schober, Health, 12 Jan. 2025
  • Selecting a broad-spectrum sunscreen with a high sun protection factor (SPF) is essential.
    — Chicago Tribune, 28 July 2023
  • Legitimate sunscreens are made in a wide range of sun protection factor values, also known as SPF values, and are over-the-counter drugs that come in many forms.
    — NBC News, 23 May 2018
  • The fabric also offers the benefit of a sun protection factor of UPF 50, which protects the skin from sun damage.
    — Courtney Leiva, Peoplemag, 10 June 2023
  • Wear sunscreen daily, especially outside, and choose one with a higher sun protection factor (SPF).
    — Mark Gurarie, Verywell Health, 2 Dec. 2024
  • Use a broad-spectrum, water-resistant sunscreen with a sun protection factor (SPF) of 30 or higher.
    — Mark Gurarie, Verywell Health, 14 May 2025
  • While formulations vary, the general rule is to select a broad-spectrum shield with a sun protection factor (SPF) of 30.
    — Khanh T.l. Tran, USA Today, 29 Aug. 2025
  • Lotions, foams and sprays that prevent sunburn are tested at 2 milligrams per square centimeter of skin to determine the sun protection factor, or SPF.
    — Jo Craven McGinty, WSJ, 29 June 2018
  • The researchers had about 80 people put SPF30 sunscreen or moisturizer with the same sun protection factor on their faces.
    — Roni Dengler, Discover Magazine, 3 Apr. 2019
  • This is how sun protection factor (SPF) is determined, but the measurement doesn’t capture UVA light.
    — Lauren J. Young, Scientific American, 9 June 2026
  • Unlike the sun protection factor that offers a consistent reference for the level of protection offered by sunscreen lotions, there is no rating for shade, Ban-Weiss said.
    — Joanne Cleaver, chicagotribune.com, 9 June 2021
  • Both variants had a sun protection factor (SPF) of around 30, while also minimizing skin cell damage and inflammation.
    — Andrew Paul, Popular Science, 4 Sep. 2025
  • Since homemade sunscreens are not subject to the same rigorous testing and regulation as commercial products, their sun protection factor (SPF) and broad-spectrum protection cannot be verified.
    — Alyssa Hui, Verywell Health, 22 July 2024
  • The American Academy of Dermatology recommends a shot glass-size amount with a sun protection factor of at least 30, applied 15 minutes before going outdoors.
    — BostonGlobe.com, 6 Aug. 2021

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'sun protection factor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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