Optically activated particles for use in cosmetic compositions
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United States of America Patent
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Dec 11, 2007
Grant Date -
Mar 18, 2004
app pub date -
Sep 13, 2002
filing date -
Sep 13, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Optically activated particles for use in cosmetic and pharmaceutical compositions are disclosed. The optically activated particles include a solid substrate having a fluorescent compound fixed thereto, and coated or encapsulated with a transparent or translucent coating of crosslinked polyvinyl alcohol. The optically activated particles absorb light at a UV wavelength and emit visible light at longer wavelengths, and are able to both absorb and scatter light in a diffuse manner in order to reduce the visual perception of skin imperfections, including cellulite, wrinkles, shadows, skin discolorations, blotchiness, and mild scars.
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