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Published November 14, 2005
Related Searches: patent Surfactant gel sunscreen
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● Patent No. US 6,607,713 B1: L’Oréal,
Paris, France, patented a process to
improve the UV stability of a photosensitive
sunscreen agent by adding the
sunscreen agent to a sol-gel consisting
of at least one silicon alkoxide and at
least one nonionic surfactant.

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