Br J Dermatol October 2009 PMID 19663879

Does chronic sunscreen use reduce vitamin D production to insufficient levels?

M Norval, H C Wulf

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Mentions

19
Peak: 3 in Jul 2022
across 4 sources since Jun 2022

Extended reach

60,748
potential audience

Total likes

1,950

Video views

42,777

Mentions per month

Jun 2022 – Jul 2025

Where it's discussed

  • News8 articles
  • X / Twitter7 posts
  • YouTube2 videos
  • Facebook2 posts

AI synopsis

What people are saying

The discussions reflect a balanced interest, with comments highlighting that most people don't apply sunscreen thoroughly, which diminishes concerns about deficiency. The tone varies from casual mentions like 'Anti Sunscreen Vegans Should Watch This' to references of scientific studies, showing a blend of general curiosity and scientific engagement; this combination results in moderate scores across all dimensions.

AgreementModerate agreement

Most discussion participants seem to accept the findings, acknowledging that normal sunscreen use does not typically cause vitamin D deficiency.

InterestModerate interest

The social discussions show a moderate level of curiosity and attention to the topic, especially with references to real-world behaviors and studies.

EngagementModerate engagement

Participants are exchanging ideas, sharing references, and commenting on practical aspects like sunscreen application and alternative vitamin D sources.

ImpactNeutral impact

The overall influence of these discussions appears moderate; they spread awareness and clarify misconceptions but do not seem to drive substantial change or policy shifts.

Abstract in brief

  • Ultraviolet B radiation from sunlight is responsible for over 90% of vitamin D production in most people, and there are concerns that using high-SPF sunscreens might block this process, leading to vitamin D deficiency.
  • The article reviews scientific studies that both support and question the idea that sunscreen use causes vitamin D insufficiency, considering experimental conditions and real-world usage.
  • The conclusion is that while sunscreens can significantly decrease vitamin D synthesis in controlled settings, normal everyday use of sunscreen typically does not lead to vitamin D deficiency.]

Top posts

Most liked on X and Bluesky
fée de la skincare
@HOELANl · X

11- Norval M, Wulf HC. Does chronic sunscreen use reduce vitamin D production to insufficient levels?. Br J Dermatol. 2009;161(4):732-736. doi:10.1111/j.1365-2133.2009.09332.x

Jul 25, 2022 · 9 likes · 14,051 followers View post →
William Herrera
@will_herrera · X

@SantiCardonaH Referencias: Norval M, Wulf HC. Does chronic sunscreen use reduce vitamin D production to insufficient levels? Br J Dermatol. 2009;161(4):732–736. Neale RE, Khan SR, Lucas RM, et al. The effect of sunscreen on vitamin D: a review. Br J Dermatol. 2019;181(5): 907–915.

Jan 10, 2024 · 8 likes · 362 followers View post →
Blue Rose
@SyazmeerAdha · X

But in reality, most people applied way less than the recommended amount & not really applied on every parts & every inch of the body (scalp, leg, etc.). There're many ways of getting vitamin D other than exposing your skin to UVB. https://t.co/LGaYLouFio

Jun 10, 2022 · 1 like · 30 followers View post →
ваше кровосточество
@witteblauw · X

@I_Mayne еще один обзор вопроса https://t.co/PieWFzhNq0

Feb 17, 2025 · 1,210 followers View post →
Helena Brors
@HelenaBrors · X

Anti Sunscreen Vegans Should Watch This #HeatWave https://t.co/V99ArLKXPX

Jul 19, 2022 · 1 share · 1,121 followers View post →
Helena Brors
@HelenaBrors · X

RT @HelenaBrors: Anti Sunscreen Vegans Should Watch This #HeatWave https://t.co/V99ArLKXPX

Jun 26, 2023 · 1 share · 1,121 followers View post →

All mentions

ваше кровосточество
@witteblauw · X

@I_Mayne еще один обзор вопроса https://t.co/PieWFzhNq0

Feb 17, 2025 · 1,210 followers View post →
William Herrera
@will_herrera · X

@SantiCardonaH Referencias: Norval M, Wulf HC. Does chronic sunscreen use reduce vitamin D production to insufficient levels? Br J Dermatol. 2009;161(4):732–736. Neale RE, Khan SR, Lucas RM, et al. The effect of sunscreen on vitamin D: a review. Br J Dermatol. 2019;181(5): 907–915.

Jan 10, 2024 · 8 likes · 362 followers View post →
Helena Brors
@HelenaBrors · X

RT @HelenaBrors: Anti Sunscreen Vegans Should Watch This #HeatWave https://t.co/V99ArLKXPX

Jun 26, 2023 · 1 share · 1,121 followers View post →
fée de la skincare
@HOELANl · X

11- Norval M, Wulf HC. Does chronic sunscreen use reduce vitamin D production to insufficient levels?. Br J Dermatol. 2009;161(4):732-736. doi:10.1111/j.1365-2133.2009.09332.x

Jul 25, 2022 · 9 likes · 14,051 followers View post →
Helena Brors
@HelenaBrors · X

Anti Sunscreen Vegans Should Watch This #HeatWave https://t.co/V99ArLKXPX

Jul 19, 2022 · 1 share · 1,121 followers View post →
Blue Rose
@SyazmeerAdha · X

But in reality, most people applied way less than the recommended amount & not really applied on every parts & every inch of the body (scalp, leg, etc.). There're many ways of getting vitamin D other than exposing your skin to UVB. https://t.co/LGaYLouFio

Jun 10, 2022 · 1 like · 30 followers View post →
Anak Manjahhh
@am_kocho · X

Additional references: [11]. Norval M, Wulf HC. Does chronic sunscreen use reduce vitamin D production to insufficient levels? Br J Dermatol. 2009;161(4):732–736.

Jun 9, 2022 · 72 followers View post →