US4968497A
Expired / Lapsed
US
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Skin tanning composition and method
Assignee: P&G Hair Care Holding Inc
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Filing: 1988-08-26
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Granted: 1990-11-06
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Expires: 2008-08-26
Abstract
Abstract The present invention relates to a method of imparting a controlled tanning of skin by treating the skin with an aqueous medium containing melanin or a precursor of melanin.
Inventors
- 👤 Leszek Wolfram
- 👤 Alexander C. Chan
- 👤 Thomas M. Schultz
- 👤 Bryan P. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:48
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4913; A61K8/492; A61K8/40; A61K8/44; A61Q; A61Q19/00; A61Q19/04
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
59 words
A process for imparting a controlled tan to skin which comprises contacting the skin prior to exposure of same to ultraviolet radiation with a composition substantially free of added enzyme and consisting essentially of about 0.1 to about 10% by weight of at least one tanning agent selected from the group consisting of 5,6-dihydroxy-indoles and a cysteinyl substituted DOPA.
Claim 2
Dependent Claim
59 words
A process for imparting a controlled tan to skin which comprises contacting the skin prior to exposure of same to ultraviolet radiation with a composition substantially free of added enzyme and consisting essentially of about 0.1 to about 10% by weight of at least one tanning agent selected from the group consisting of 5,6-dihydroxy-indoles and a cysteinyl substituted DOPA.
Claim 3
Dependent Claim
35 words
The process according to claim 1, wherein the composition is a lotion and the tanning agent is present in an amount of 0.1 to 10 by weight, based on the total weight of the composition.
Claim 4
Dependent Claim
35 words
The process according to claim 1, wherein the composition is a creme and the tanning agent is present in an amount of 0.1 to 10% by weight, based on the total weight of the composition.
Claim 5
Dependent Claim
26 words
The process according to claim 2, wherein the tanning agent is at least one selected from the group consisting of 3,4-dihydrophenalalanine, a 5,6-dihydroxyindole, and a N-alkyl-5,6-dihydroxyindole.
Claim 6
Dependent Claim
12 words
The process according to claim 3, wherein the tanning agent is 5,6-methylenedioxyindole.
Claim 7
Dependent Claim
23 words
The process of claim 4, wherein the exposure to ultraviolet radiation is for a period of from about 2 to about 30 minutes.
Claim 8
Dependent Claim
23 words
The process of claim 5, wherein the exposure to ultraviolet radiation is for a period of from about 2 to about 30 minutes.
Claim 9
Dependent Claim
13 words
The process according to claim 5 wherein the tanning agent is a 5,6-dihydroxyindole.
Claim 10
Dependent Claim
13 words
The process according to claim 6 wherein the tanning agent is a N-alkyl-5,6-dihydroxyindole.
Claim 11
Dependent Claim
12 words
The process according to claim 6 wherein the tanning agent is 5,6-methylenedioxyindole.
Claim 12
Dependent Claim
52 words
A tanning composition consisting essentially of an effective amount of at least one tanning agent selected from the group consisting of 5,6-dihydroxy-indoles and a cysteinyl substituted DOPA, said tanning composition being substantially free of added enzyme, whereby upon application of the composition to skin, color is preferentially generated in the stratum corneum.
Claim 13
Dependent Claim
52 words
A tanning composition consisting essentially of an effective amount of at least one tanning agent selected from the group consisting of 5,6-dihydroxy-indoles and a cysteinyl substituted DOPA, said tanning composition being substantially free of added enzyme, whereby upon application of the composition to skin, color is preferentially generated in the stratum corneum.
Claim 14
Dependent Claim
12 words
The composition according to claim 11 wherein the tanning agent is 5,6-methylenedioxyindole.
Claim 15
Dependent Claim
12 words
The composition according to claim 11 wherein the tanning agent is 5,6-dihydroxy-N-methylindole.
Claim 16
Dependent Claim
13 words
The composition according to claim 11 wherein the tanning agent is 5,6-dihydroxyindole-2-carboxylic acid.
Claim 17
Dependent Claim
23 words
The composition according to claim 11 wherein the tanning agent is selected from the group consisting of 2-cysteinyl-DOPA, 5-cysteinyl-DOPA, 2,5-dicysteinyl-DOPA, and mixtures thereof.
Claim 18
Dependent Claim
13 words
The composition according to claim 11 wherein the tanning agent is an N-alkyl-5,6-dihydroxyindole.
Claim 19
Dependent Claim
23 words
The composition according to claim 12 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 20
Dependent Claim
23 words
The composition according to claim 13 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 21
Dependent Claim
23 words
The composition according to claim 14 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 22
Dependent Claim
23 words
The composition according to claim 15 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 23
Dependent Claim
23 words
The composition according to claim 16 wherein said tanning agent is present in an amount of about 0.1 to about 10% by weight.
Claim 24
Dependent Claim
127 words
A cosmetic composition designed to impart to the skin a coloring which is substantially similar to natural tanning, characterized in that it contains, in a cosmetically acceptable base suitable for topical application, an effective amount of at least one compound of formula I or II, wherein formula I is: ##STR3## in which R 1 denotes a hydrogen atom or an alkyl group; R 2 denotes a hydrogen atom, or a carboxyl group; and R 3 and R 4 each denote hydrogen or methyl groups; or R 3 and R 4 together represent a methylene group which is necessary to complete a 3-or 5-membered heterocyclic ring; and formula II is: ##STR4## wherein R 5 and R 6 are each hydrogen or are a part of a cysteinyl group.
Claim 25
Dependent Claim
127 words
A cosmetic composition designed to impart to the skin a coloring which is substantially similar to natural tanning, characterized in that it contains, in a cosmetically acceptable base suitable for topical application, an effective amount of at least one compound of formula I or II, wherein formula I is: ##STR3## in which R 1 denotes a hydrogen atom or an alkyl group; R 2 denotes a hydrogen atom, or a carboxyl group; and R 3 and R 4 each denote hydrogen or methyl groups; or R 3 and R 4 together represent a methylene group which is necessary to complete a 3-or 5-membered heterocyclic ring; and formula II is: ##STR4## wherein R 5 and R 6 are each hydrogen or are a part of a cysteinyl group.
Claim 26
Dependent Claim
20 words
The compositions of claim 22 containing from about 0.1 to about 10% by weight of the compound of formula I.
Claim 27
Dependent Claim
21 words
The composition of claim 22 which also contains at least one ingredient selected from the group consisting of emollients, and perfumes.
Claim 28
Dependent Claim
17 words
The composition of claim 22 wherein the cosmetic base contains at least one of ethanol and isopropanol.
Claim 29
Dependent Claim
13 words
The composition of claim 22 in the form of a lotion or gel.
Claim 30
Dependent Claim
43 words
A process for coloring skin to impart a coloring which is substantially similar to natural tanning comprising the steps of contracting the skin with an effective amount of composition defined in any one of claims 11 to 16, 17 to 21 and 22.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-11-05 | 1994-05-07 | 1994-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-05 | 1998-05-07 | 1998-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-05 | 2002-05-07 | 2002-11-06 | $7700.00 | Window Closed / Lapsed |