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Journal of Biomedical Optics • Open Access

Raman spectroscopic analysis of the increase of the carotenoid antioxidant concentration in human skin after a 1-week diet with ecological eggs
Author(s): Karoline Hesterberg; Jürgen M. Lademann; Alexa Patzelt; Wolfram Sterry; Maxim E. Darvin

Paper Abstract

Skin aging is mainly caused by the destructive action of free radicals, produced by the UV light of the sun. The human skin has developed a protection system against these highly reactive molecules in the form of the antioxidative potential. Carotenoids are one of the main components of the antioxidants of the human skin. From former studies, it is known that skin aging is reduced in individuals with high levels of carotenoids. Because most of the antioxidants cannot be produced by the human organism, they must be up taken by nutrition. Using noninvasive Raman spectroscopic measurements it is demonstrated that not only fruits and vegetables but also eggs contain high concentrations of antioxidants including carotenoids, which are even doubled in the case of ecological eggs. After a 1-week diet with ecological eggs performed by six volunteers, it is found that the concentration of the carotenoids in the skin of the volunteers increased by approx. 20%. Our study does not intend to recommend exorbitant egg consumption, as eggs also contain harmful cholesterol. But in the case of egg consumption, ecological eggs from hens kept on pasture should be preferred to also receive a benefit for the skin.

Paper Details

Date Published: 1 March 2009
PDF: 5 pages
J. Biomed. Opt. 14(2) 024039 doi: 10.1117/1.3119257
Published in: Journal of Biomedical Optics Volume 14, Issue 2
Show Author Affiliations
Karoline Hesterberg, Humboldt-Univ. zu Berlin (Germany)
Jürgen M. Lademann, Charité Universitätsmedizin Berlin (Germany)
Alexa Patzelt, Charité Universitätsmedizin Berlin (Germany)
Wolfram Sterry, Charité Universitätsmedizin Berlin (Germany)
Maxim E. Darvin, Charité Universitätsmedizin Berlin (Germany)

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