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A substance from bacteria can lead to allergy-free sunscreen
Date:10/25/2011

ients who reacted by developing photocontact allergy to octocrylene developed photocontact allergy also to the drug ketoprofen.

"We tested 172 patients with suspected skin reactions to sunscreen creams and/or the drug ketoprofen in one of our studies. It turned out that 23 of these patients reacted to the UV filter octocrylene. Five of them were diagnosed with contact allergy and the other 18 with photocontact allergy."

So Isabella Karlsson is placing her hopes onto the natural product scytonemin. She has managed to produce this substance artificially, in collaboration with Chalmers University of Technology. Scytonemin is produced by certain cyanobacteria that live in habitats exposed to very strong sunlight. Scytonemin absorbs UV light and thus protects the bacteria from being damaged by the sun's radiation. More research will be required, however, before it can be added to sunscreen creams.
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Contact: Isabella Karlsson
isabella.karlsson@chem.gu.se
46-317-869-108
University of Gothenburg
Source:Eurekalert  

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