Colored formulations for application to human skin
First Claim
1. A sunscreen composition for application to human skin, comprising:
- one or more of a thickener, an emulsifier, an emollient, a surfactant, a preservative, a perfume, and a film former;
a sunscreen agent; and
a bright color indicator which (a) ensures that the composition intensely contrasts human skin color, when applied to the skin, so that human vision easily discerns an area of the skin covered by the composition, and (b) substantially disappears after a short period of time following distribution on the skin.
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Accused Products
Abstract
A lotion such as a sunscreen includes a color indicator which brightly colorizes the lotion until the lotion is applied to human skin, wherein after the colored lotion changes color or turns clear. A physiological color indicator such as a pH indicator, a colorant or color indicator can be used, alone or in combination, to colorize the lotion in accord with the invention. The lotion is suitable for use in lotion, gel, mousse or medication that is best applied in an even and uniform manner to the skin. Accordingly, one preferred use of the invention is in UV-protection sunscreens so that a user can ensure even distribution of the sunscreen on the body. A sunscreen of the invention can also include an emollient, such as jojoba oil, an emulsifier, a surfactant, such as sorbitol, water, and a pH adjuster, such as triethanolaminie.
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Citations
22 Claims
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1. A sunscreen composition for application to human skin, comprising:
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one or more of a thickener, an emulsifier, an emollient, a surfactant, a preservative, a perfume, and a film former; a sunscreen agent; and a bright color indicator which (a) ensures that the composition intensely contrasts human skin color, when applied to the skin, so that human vision easily discerns an area of the skin covered by the composition, and (b) substantially disappears after a short period of time following distribution on the skin. - View Dependent Claims (2, 3, 4)
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5. A sunscreen composition for application to human skin, comprising:
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one or more of a thickener, an emulsifier, an emollient, a surfactant, a preservative, a perfume, and a film former; sunscreen agent; and a red, blue, purple, or green color indicator which ensures that the composition has an intense color, other than color of human skin, when applied to skin, and which changes color when distributed over the skin. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A method of manufacturing a sunscreen composition, comprising the steps of:
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creating a formulation of a sunscreen agent and one or more of a thickener, an emulsifier, an emollient, a surfactant, a preservative, a perfume, and a film former to form the composition; and mixing a brightly colored indicator with the formulation such that the composition has high contrast to human vision when applied to distinct areas of the skin, and such that the composition becomes substantially colorless in those areas after prolonged contact with the skin. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A sunscreen composition for application to human skin, comprising:
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a sunscreen agent, and a color indicator which ensures that the composition has an intense color, in high contrast to human skin color, when applied to skin, and which becomes substantially colorless, after a short time period following even distribution over the skin, the time period being between one half and ten minutes. - View Dependent Claims (21, 22)
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Specification