Method, system and device for evaluating skin type
First Claim
Patent Images
1. A method of determining a skin type, comprising:
- applying at least one drop of substance onto a zone of skin or onto a collector member previously put into contact with said zone of skin, the substance being capable of modifying at least one physicochemical property of a surface of said zone or of said collector member exposed to said substance;
after said at least one drop has disappeared or been removed, evaluating an extent of said surface exposed to said substance; and
determining said skin type as a function of said extent.
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Accused Products
Abstract
A method, device and system for determining skin type. The method includes a step of applying at least one drop of substance onto a zone of the skin or on a collector member previously in contact with the zone of the skin. The substance can modify at least one physicochemical property of the surface of the zone or of the collector member exposed to the substance. After the drop has disappeared or been removed, the extent of the surface is evaluated and the skin type is determined as a function of this evaluation.
26 Citations
66 Claims
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1. A method of determining a skin type, comprising:
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applying at least one drop of substance onto a zone of skin or onto a collector member previously put into contact with said zone of skin, the substance being capable of modifying at least one physicochemical property of a surface of said zone or of said collector member exposed to said substance; after said at least one drop has disappeared or been removed, evaluating an extent of said surface exposed to said substance; and determining said skin type as a function of said extent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of treating skin, the method comprising:
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applying at least one drop of a test substance on a zone of said skin or on a collector member which was previously in contact with said zone, wherein the test substance modifies at least one physicochemical property of a surface of said zone of skin or of the collector member exposed to said test substance; after the drop has disappeared or been removed, evaluating an extent of said surface which was in contact with said drop; determining a skin type as a function of said extent; and treating the skin as a function of said skin type. - View Dependent Claims (31, 32, 33)
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34. A method of determining treatment effectiveness, the method comprising:
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applying at least one drop of substance to a zone of the skin or to a collector member previously in contact with said zone, the substance being capable of modifying at least one physicochemical property of a surface of said zone of skin or of the collector member in contact with said drop; evaluating an extent of said surface which was in contact with said drop, after the drop has been removed or has disappeared, by observing modifications induced by said substance; performing a treatment on said skin; repeating the steps of applying and evaluating; comparing results before and after said treatment; and deducing an indication concerning the effectiveness of the treatment based on said comparing step.
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35. A method of evaluating physiological age of skin, the method comprising:
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applying at least one drop of substance onto a zone of skin or onto a collector member previously in contact with said zone, the substance being capable of modifying at least one physicochemical property of a surface of said zone of skin or of the collector member exposed to said substance; after the drop has disappeared or been removed, evaluating an extent of said surface which was in contact with said drop by observing modifications induced by said substance; and determining the age of the skin as a function of said extent.
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36. An assembly comprising:
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an applicator adapted to apply a drop of a substance to the skin or to a collector member, the substance being capable of modifying at least one physicochemical property of a surface of the skin or of a collector member exposed to said substance, and at least one measuring device configured to measure a length of said surface which was in contact with said drop, and to display a skin type as a function of a result of the measurement after said drop has disappeared or been removed. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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56. A device for determining a skin type, said device comprising:
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means for measuring an extent of a surface having at least one physicochemical property modified compared with a zone situated around said surface, and means for displaying a skin type as a function of the extent measured with said means for measuring. - View Dependent Claims (57, 58)
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59. A system for identifying a skin type, said system comprising:
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a substance to apply on a zone of skin and capable of modifying at least one physicochemical property of a surface of said zone exposed to said substance, and a scale comprising; a support; a marking on said support, said marking indicating directly said skin type, as a function of a measured dimension of a mark resulting from an application of at least one drop of the substance onto the zone of skin, said scale being configured to be viewed simultaneously with the mark when said marking indicates said skin type. - View Dependent Claims (61)
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60. A system for identifying a skin type, said system comprising:
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a substance to apply on a zone of skin or into a sebum collector member and capable of modifying at least one physicochemical property of a surface of said zone exposed to said substance, a scale comprising; a support; a marking on said support, said marking indicating directly said skin type, as a function of a measured dimension of a mark resulting from an application of at least one drop of the substance onto the zone of skin or into the sebum collector member, and an optical system enabling the scale to be viewed simultaneously with an enlarged image of a mark on a skin. - View Dependent Claims (66)
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62. A method of determining skin type comprising:
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applying a drop of a substance on a surface having skin sebum; leaving said substance in contact with said surface long enough for said substance to change a property of said surface; measuring a quantity characterizing a contact area between said substance and said surface to evaluate an extent of said surface exposed to said substance; and identifying said skin type based on said evaluated extent of said surface.
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63. A system for identifying a skin type, said system comprising:
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a substance to apply on a zone of skin and capable of modifying at least one physicochemical property of a surface of said zone exposed to said substance, a scale comprising; a support; a marking on said support, said marking indicating directly said skin type, as a function of a non-electronically measured dimension of a mark resulting from an application of at least one drop of the substance onto the zone of skin.
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64. An assembly comprising:
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an applicator adapted to apply a drop of a substance to the skin or to a collector member, the substance being capable of modifying at least one physicochemical property of a surface of the skin or of a collector member exposed to said substance; and at least one measuring device for evaluating an extent of said surface which was in contact with said drop, after said drop has disappeared or been removed, wherein said measuring device comprises at least one magnetic sensor.
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65. An assembly comprising:
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an applicator adapted to apply a drop of a substance to the skin or to a collector member, the substance being capable of modifying at least one physicochemical property of a surface of the skin or of a collector member exposed to said substance; and at least one measuring device for evaluating an extent of said surface which was in contact with said drop, after said drop has disappeared or been removed, wherein said measuring device comprises at least one non-optical sensor which delivers an image of a microrelief of the skin.
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Specification