Cited by 77Skin Protection and AgingNonmelanoma Skin Cancer Studiesmelanin and skin pigmentation

Sunscreen use and failures — on site observations on a sun-holiday

Petersen, Bibi, Datta, Pameli, Philipsen, Peter Alshede, Wulf, Hans Christian·2012·Photochemical & Photobiological Sciences

Abstract

With this observation study we aimed to determine how and when sunscreen was used. 20 sun seekers were observed during a one-week sun holiday in Hurghada, Egypt. The sunscreen application thickness was related to part of body, time outdoors, exposure to ultraviolet radiation and to sunburning. Skin sites with sunscreen were exposed to UVR significantly longer and received significantly higher UVR doses than skin sites without sunscreen. They received an average of 0.62 SED [0.0-9.3 SED] (13% of their MED) before the first sunscreen application of the day. The average sunscreen used was SPF15 and the sunscreen application thickness was in average 0.79 mg cm(-)2 giving an approximated effect of SPF3. For different body parts either the total UVR exposure dose or the UVR exposure time and UVR exposure dose before the first sunscreen application were higher for sunburned than non-sunburned skin sites. In the final model gender, skin type and UVR to skin (adjusted for SPF and sunscreen application thickness) were significant predictors of sunburning. The sunscreen application thickness of 0.79 mg cm(-)2 was less than the 2 mg cm(-2) used for testing SPF. The late start of sunscreen use and improper application thickness was ineffective in preventing sunburn, and therefore could not compensate for the risk of prolonged UVR exposure and high UVR doses. Our results lead us to suspect that the protective effect of sunscreen use against DNA-damage, and thereby skin cancer, is minimal the way sunscreen is used under real sun holiday conditions.

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Crossref · 10.1039/c2pp25127b

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  • The formulation in that study was applied at 4 mg/cm2, double the thickness at which sunscreens are tested, suggesting the real SPF would be at least half of the calculated value and that it was used at a concentration significantly thicker than sunscreens are typically applied in real life.

    “One criticism of this study is the formulation was applied at a thickness of 4mg/cm2, double the thickness at which sunscreens are tested suggesting that the real SPF would be at least half of this value, and used at a concentration significantly thicker than sunscreens are typically applied in real life situations [108].”

    From Mycosporine-Like Amino Acids for Skin Photoprotection (2019) · cites this paper as [108]

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Authors
Petersen, B., Datta, P., Philipsen, P. A., & Wulf, H. C.
Affiliations
Bispebjerg Hospital (DK)
Corresponding author
Petersen, Bibi
Venue
Photochemical & Photobiological Sciences
Published
2012-01
Volume
12
Issue
1
Pages
190-196
ISSN
  • 1474-905X (ISSN-L)
  • 1474-9092
OpenAlex
W2148635562
Cited by
77
References
30
Citations by year
2024: 5 · 2023: 11 · 2022: 6 · 2021: 8 · 2020: 6 · 2019: 12 · 2018: 6 · 2017: 6 · 2016: 5 · 2015: 2 · 2014: 7 · 2013: 3
FWCI
4.80
Type
journal article
Language
en
Open access
closed
Locations
  • Photochemical & Photobiological Sciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Health Sciences › Medicine › Epidemiology › Nonmelanoma Skin Cancer Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
Keywords
sunscreen use, sunburn, UV exposure, sun protection, skin type, SPF, sun protection behavior, skin cancer prevention
MeSH terms
Adult, Female, Holidays, Humans, Male, Middle Aged, Radiation Dosage, Risk Factors, Sex Factors, Skin, Sunburn, Sunscreening Agents, Ultraviolet Rays, Logistic Models, Sun Protection Factor

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