Method, composition for the preparation and cleaning of photo chromic dyes resulting in a product suitable for use on human skin
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United States of America Patent
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Jan 24, 2017
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N/A
app pub date -
Jul 13, 2016
filing date -
May 3, 2016
priority date (Note) -
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Abstract
A method and composition of a photo chromic dye suitable to be applied directly to human skin, and which dye is configured to indicate exposure to UV rays. The composition is configured to change color upon exposure to UVA, UVB and/or UVC rays. The composition can be used with other compositions, such as sunscreen, and be applied to human skin prior to application of the sunscreen, or, formulated with the sunscreen such that when the active ingredients of the sunscreen diminish, the photo chromic dye will change color to generate a visual indicator of this condition.
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