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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > January  >
Chemistry Everyday for Everyone
Applications and Analogies
The Photochemistry of Sunscreens
Doris R. Kimbrough
University of Colorado at Denver
Cover
January 1997
Vol. 74 No. 1
p. 51
Abstract
Many of us use commercially available sunscreens to protect us from sunburn, premature aging, and skin cancer, but what is the chemistry behind their function? This article describes how light energy interacts with molecules to produce excited states, the behavior of those excited states, the particular pathways that result in ultraviolet protection, and the relationship between concentration and absorption. Structures of substances used in sunscreen preparations and their accompanying regions of UV-absorption are provided. A brief discussion of the "Sun Protection Factor" or SPF that appears on the labels of sunscreen preparations is also included.

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*  Citation
 Kimbrough, Doris R. J. Chem. Educ. 1997 74 51.
*  Keywords
*  History
 Created:
Last Updated:		 July 29, 1999
June 23, 2005
Link to Cover added (June 2004).
Link to Featured Molecules added (September 2004).
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