A new method to quantify the application thickness of sunscreen on skin

U Bauer; D S O'Brien; Michael G Kimlin

doi:10.1111/j.1751-1097.2010.00816.x

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A new method to quantify the application thickness of sunscreen on skin

Journal article

Open access

Peer reviewed

A new method to quantify the application thickness of sunscreen on skin

U Bauer, D S O'Brien and Michael G Kimlin

Photochemistry and Photobiology, Vol.86(6), pp.1397-1403

2010

DOI: https://doi.org/10.1111/j.1751-1097.2010.00816.x

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Abstract

sunscreen application

Proper application of sunscreen is essential as an effective public health strategy for skin cancer prevention. Insufficient application is common among sunbathers, results in decreased sun protection and may therefore lead to increased UV damage of the skin. However, no objective measure of sunscreen application thickness (SAT) is currently available for field-based use. We present a method to detect SAT on human skin for determining the amount of sunscreen applied and thus enabling comparisons to manufacturer recommendations. Using a skin swabbing method and subsequent spectrophotometric analysis, we were able to determine SAT on human skin. A swabbing method was used to derive SAT on skin (in mg sunscreen per cm2 of skin area) through the concentration-absorption relationship of sunscreen determined in laboratory experiments. Analysis differentiated SATs between 0.25 and 4 mg cm-2 and showed a small but significant decrease in concentration over time postapplication. A field study was performed, in which the heterogeneity of sunscreen application could be investigated. The proposed method is a low cost, noninvasive method for the determination of SAT on skin and it can be used as a valid tool in field- and population-based studies. © 2010 The Authors. Journal Compilation. The American Society of Photobiology.

Details

Title: A new method to quantify the application thickness of sunscreen on skin
Authors: U Bauer (Author) - Queensland University of Technology
D S O'Brien (Author) - Queensland University of Technology
Michael G Kimlin (Author) - Queensland University of Technology
Publication details: Photochemistry and Photobiology, Vol.86(6), pp.1397-1403
Publisher: Wiley-Blackwell Publishing Inc.
Date published: 2010
DOI: 10.1111/j.1751-1097.2010.00816.x
ISSN: 0031-8655
Copyright note: Copyright © 2010 Wiley-Blackwell Publishing Inc. This is the peer reviewed version of the following article: Bauer, U, O'Brien, D S, Kimlin, Michael G (2010) A new method to quantify the application thickness of sunscreen on skin. Photochemistry and Photobiology, Vol. 86, No. 6, pp.1397-1403, which has been published in final form at http://dx.doi.org/10.1111/j.1751-1097.2010.00816.x. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99449334202621
Output Type: Journal article

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