Using a state-of-the art singlet oxygen phosphorescence detector, we have measured the ability of the sunscreening agents benzophenone-3, butylmethoxydibenzoylmethane and octocrylene to photosensitise the production of this reactive oxygen species in solvents of different polarity and proticity. These sunscreens are able to produce singlet oxygen upon exposure to UVA radiation, with quantum yields ranging from 0.0005 to 0.003. The properties of the sunscreen's microenvironment play a pivotal role in this process.
|Translated title of the contribution||Safety of Sunscreens: Photogeneration of Singlet Oxygen by the UV Absorbers Benzophenone-3, Butylmethoxydibenzoylmethane and Octocrylene|
|Number of pages||6|
|Publication status||Published - Mar 2007|