WO2019051165A1

WO2019051165A1 - Hair removal compositions comprising gemstone minerals

Info

Publication number: WO2019051165A1
Application number: PCT/US2018/049855
Authority: WO
Inventors: Susanna Disotto
Original assignee: Conair Corporation
Priority date: 2017-09-08
Filing date: 2018-09-07
Publication date: 2019-03-14

Abstract

A topical cosmetic composition for hair removal comprising crushed gemstone mineral.

Description

HAIR REMOVAL COMPOSITIONS COMPRISING GEMSTONE MINERALS

CLAIM OF PRIORITY

[0001] The present application claims priority from U.S. provisional patent application Serial Number 62/555,823, filed September 8, 2017, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

[0002] The present disclosure relates to cosmetic compositions useful for hair removal.

BACKGROUND

[0003] The removal of body hair is often desirable for cosmetic, surgical, or religious reasons. Hair may be removed by depilation, which is the removal of hair above the surface of the skin. Various methods of removing hair by depilation are known, such as shaving or by applying chemical depilatories, which work by breaking the disulfide bonds that link the protein chains that give hair its strength. While such methods may be satisfactory for certain purposes, they do not remove the part of the hair below the skin. These methods also tend to irritate the skin, either by the scraping of the razor blade or by the chemical irritation of the depilatory. Moreover, because the portion of the hair below the skin is not removed, regrowth begins almost immediately and repeated treatment is often necessary after only a few days to maintain smooth, hairless skin.

[0004] Hair may also be removed by epilation, which is the removal of the entire hair, including the part below the skin. Because epilation removes the entire hair, regrowth is usually not apparent for several weeks. Various methods of removing hair by epilation are known, including waxing, lasers, electrolysis, and plucking. All of these methods have some undesirable side effects, whose severity varies with the particular skin type of the user.

[0005] It would be beneficial to provide a composition for hair removal that is effective while being gentle and hydrating to the skin of the user.

SUMMARY

[0006] According to one aspect of the present disclosure, a topical cosmetic composition is provided which comprises glyceryl rosinate, triethylene glycol rosinate, beeswax, ethylene/vinyl acetate copolymer, hydrogenated microcrystalline wax and crushed gemstone mineral. The crushed gemstone mineral is preferably tourmaline, amethyst, or quartz. The composition may further include one or more of coconut oil, zinc oxide, a solvent such as mineral oil or corn germ oil, a skin conditioner such as grape leaf extract or grape seed oil, opacifying agents such as titanium dioxide, tin oxide, and mica, fragrance, and coloring.

[0007] This composition is in the form of a wax, which is melted and applied to the skin in a thin layer. After the wax has cooled, it is peeled off the area of application, removing the hair with it. Because the cosmetic composition is gentle to the skin and less irritating that existing compositions, it may be used in sensitive areas, such as for bikini waxing, without causing undesirable irritation.

DETAILED DESCRIPTION

[0008] In accordance with the present disclosure, cosmetic compositions are provided that enable superior hair removal and promote skin hydration. Although wax compositions for hair removal are known, the presence of gemstone mineral in the compositions of the invention provide more effective hair removal with less skin irritation than known wax compositions.

[0009] One embodiment of the composition comprises glyceryl rosinate in the range of about 50-75% by weight, triethylene glycol rosinate in the range of about 10-25% by weight, beeswax in the range of about 5-10% by weight, ethylene/vinyl acetate copolymer in the range of about 1 -5% by weight, hydrogenated microcrystalline wax in the range of about 1 -5% by weight, and crushed gemstone mineral in about 1 % by weight. The composition may additionally comprise about 1 % by weight of one or more of each of an opacifying agent (such as one or more of titanium dioxide, mica, and tin oxide), coconut oil, a skin conditioner selected from one or more of grape leaf extract and grape seed oil, and zinc oxide. Still further, the composition may comprise about 1 % by weight of a solvent selected from one or more of corn germ oil and mineral oil, about 1 % by weight fragrance, and about 1 % by weight coloring agent. The fragrance and coloring agent may be selected from any known materials. One preferred fragrance comprises cinnamyl alcohol, citronellol, geraniol, and alpha-methyl ionone. Another preferred fragrance comprises benzyl salicylate, farnesol, geraniol, limonene, linalool, and butylphenyl methylpropional. One preferred coloring agent is violet 2. Another preferred coloring agent is a mixture of violet 2 and red 6 lake. The total of the ingredients in each composition is 100% by weight.

[0010] It has surprisingly been found that the presence of crushed gemstone mineral in the cosmetic compositions enhances the efficacy of hair removal while being gentle and hydrating to the skin. The gemstone mineral is preferably selected from tourmaline, amethyst, and quartz.

[001 1] Another embodiment of the composition comprises about 55-70% by weight glyceryl rosinate, about 15-20% by weight triethylene glycol rosinate, about 7.5% by weight beeswax, about 3% by weight ethylene/vinyl acetate copolymer, about 3% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed tourmaline, the total of the ingredients being 100% by weight. [0012] Another embodiment of the composition comprises about 55-70% by weight glyceryl rosinate, about 15-20% by weight triethylene glycol rosinate, about 7.5% by weight beeswax, about 3% by weight ethylene/vinyl acetate copolymer, about 3% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed amethyst, the total of the ingredients being 100% by weight.

[0013] Another embodiment of the composition comprises about 55-70% by weight glyceryl rosinate, about 15-20% by weight triethylene glycol rosinate, about 7.5% by weight beeswax, about 3% by weight ethylene/vinyl acetate copolymer, about 3% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed quartz, the total of the ingredients being 100% by weight.

[0014] The above compositions may additionally comprise about 1 % by of each of titanium dioxide, mica, tin oxide, coconut oil, grape leaf extract, grape seed oil, corn germ oil, and zinc oxide. Still further, the composition may comprise about 1 % by weight mineral oil, about 1 % by weight fragrance, and about 1 % by weight coloring agent. The fragrance and coloring agent may be selected from any known materials. One preferred fragrance comprises cinnamyl alcohol, citronellol, geraniol, and alpha- methyl ionone. Another preferred fragrance comprises benzyl salicylate, farnesol, geraniol, limonene, linalool, and butylphenyl methylpropional. One preferred coloring agent is violet 2. Another preferred coloring agent is a mixture of violet 2 and red 6 lake. The total of the ingredients in each composition is 100% by weight.

[0015] Another embodiment of the composition consists essentially of about 50- 75% by weight glyceryl rosinate, about 10-25% by weight triethylene glycol rosinate, about 5-10% by weight beeswax, about 1-5% by weight ethylene/vinyl acetate copolymer, about 1 -5% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed gemstone mineral selected from tourmaline, amethyst, and quartz, the total of the ingredients being 100% by weight.

[0016] Another embodiment of the composition consists of about 50-75% by weight glyceryl rosinate, about 10-25% by weight triethylene glycol rosinate, about 5-10% by weight beeswax, about 1 -5% by weight ethylene/vinyl acetate copolymer, about 1 -5% by weight hydrogenated microcrystalline wax, about 1 % by weight crushed gemstone mineral selected from tourmaline, amethyst, and quartz, and about 1 % by weight of each of an opacifying agent, coconut oil, zinc oxide, a solvent, a skin conditioner, fragrance, and a coloring agent, the total of the ingredients being 100% by weight. The opacifying agent may be one or more of titanium dioxide, mica, and tin oxide. The solvent may be one or more of mineral oil and corn germ oil. The skin conditioner may be one or more of grape leaf extract and grape seed oil. The fragrance may be one or more of cinnamyl alcohol, citronellol, geraniol, farnesol, limonene, and linalool. The coloring agent may be one or more of violet 2 and red 6 lake.

[0017] The compositions may be prepared by combining the ingredients with heat and mixing to achieve a homogeneous composition. Those of skill in the cosmetic art will readily understand how to prepare the compositions.

[0018] Example 1 - Black Tourmaline Pearled Hard Wax

The following ingredients are combined in a heated mixing apparatus and blended to a homogeneous composition (all percentages are by weight): 50-75% glyceryl rosinate, 10-25% triethylene rosinate, 5-10% beeswax, 1 -5% ethylene/vinyl acetate copolymer, 1 -5% hydrogenated microcrystalline wax, 1 % titanium dioxide, 1 % mica, 1 % tin oxide, 1 % coconut oil, 1 % tourmaline powder, 1 % zinc oxide, 1 % fragrance (cinnamyl alcohol, citronellol, geraniol, and alpha-isomethyl ionone), 1 % mineral oil, and 1 % violet 2, the total weight of the composition being 100%. The resulting composition is melted and applied to a location on the skin of a human subject from which hair is to be removed. After the applied composition is cooled, it is peeled from the skin location, thus removing the hair.

[0019] Example 2 - Grape Stone Oil Pearled Hard Wax

The following ingredients are combined in a heated mixing apparatus and blended to a homogeneous composition (all percentages are by weight): 50-75% glyceryl rosinate, 10-25% triethylene rosinate, 5-10% beeswax, 1 -5% ethylene/vinyl acetate copolymer, 1 -5% hydrogenated microcrystalline wax, 1 % titanium dioxide, 1 % mica, 1 % tin oxide, 1 % coconut oil, 1 % grape leaf extract, 1 % grape seed oil, 1 % amethyst powder, 1 % fragrance (benzyl salicylate, farnesol, geraniol, limonene, linalool, and butylphenyl methylpropional), 1 % corn germ oil, 1 % mineral oil, 1 % violet 2, and 1 % red 6 lake, the total weight of the composition being 100%. The resulting composition is melted and applied to a location on the skin of a human subject from which hair is to be removed. After the applied composition is cooled, it is peeled from the skin location, thus removing the hair.

[0020] In the description and claims of this specification the word "comprise" and variations of that word, such as "comprises" and "comprising" are not intended to exclude other features, additives, components, integers or steps but rather, unless otherwise stated explicitly, the scope of these words should be construed broadly such that they have an inclusive meaning rather than an exclusive one. The term "about" means plus or minus one tenth by weight of the designated quantity. The term "consists essentially of means the composition consists of the recited ingredients plus optional minor amounts (less than or equal to 1 % by weight of the composition) of one or more of solvents, fragrances, skin conditioners, coloring agents, and opacifying agents. Although the cosmetic compositions of the invention have been described in the present disclosure by way of illustrative examples, it is to be understood that the invention is not limited thereto and that variations can be made as known by those skilled in the art without departing from the teachings of the invention defined by the appended claims.

Claims

CLAIMS What is claimed is:

1 . A topical cosmetic composition for hair removal which comprises about 50- 75% by weight glyceryl rosinate, about 10-25% by weight triethylene glycol rosinate, about 5-10% by weight beeswax, about 1 -5% by weight ethylene/vinyl acetate copolymer, about 1 -5% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed gemstone mineral, the total of the ingredients in the composition being 100% by weight.

2. The composition of claim 1 which further comprises about 1 % by weight titanium dioxide, about 1 % by weight mica, about 1 % by weight tin oxide, about 1 % by weight coconut oil, and about 1 % by weight zinc oxide.

3. The composition of claim 2 which further comprises about 1 % by weight of a solvent selected from corn germ oil and mineral oil, about 1 % by weight fragrance, and about 1 % coloring agent.

4. The composition of claim 3 wherein the fragrance comprises cinnamyl alcohol, citronellol, geraniol, and alpha-methyl ionone, and the coloring agent is violet 2 or wherein the fragrance comprises benzyl salicylate, farnesol, geraniol, limonene, linalool, and butylphenyl methylpropionalte, and the coloring agent is a mixture of violet 2 and red 6 lake.

5. The composition of claim 1 wherein the crushed gemstone mineral is selected from tourmaline, amethyst, and quartz.

6. The composition of claim 5 wherein the crushed gemstone mineral is tourmaline.

7. The composition of claim 5 wherein the crushed gemstone mineral is amethyst.

8. The composition of claim 5 wherein the crushed gemstone mineral is quartz.

9. The composition of claim 4 wherein the crushed gemstone mineral is selected from tourmaline, amethyst and quartz.

10. The composition of claim 9 wherein the crushed gemstone mineral is tourmaline

1 1 . The composition of claim 9 wherein the crushed gemstone mineral is amethyst.

12. The composition of claim 9 wherein the crushed gemstone mineral is quartz.

13. The composition of claim 1 which comprises about 55-70% by weight glyceryl rosinate, about 15-20% by weight triethylene glycol rosinate, about 7.5% by weight beeswax, about 3% by weight ethylene/vinyl acetate copolymer, about 3% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed gemstone mineral selected from tourmaline, amethyst, and quartz, the total of the ingredients in the composition being 100% by weight.

14. The composition of claim 1 which consists essentially of about 55-70% by weight glyceryl rosinate, about 1 1-25% by weight triethylene glycol rosinate, about 5-10% by weight beeswax, about 1 -5% by weight ethylene/vinyl acetate copolymer, about 1 -5% by weight hydrogenated microcrystalline wax, and about 1 % by weight crushed gemstone mineral selected from tourmaline, amethyst, and quartz, the total of the ingredients in the composition being 100% by weight.

15. The composition of claim 1 which consists of about 50-75% by weight glyceryl rosinate, about 10-25% by weight triethylene glycol rosinate, about 5-10% by weight beeswax, about 1-5% by weight ethylene/vinyl acetate copolymer, about 1 -5% by weight hydrogenated microcrystalline wax, about 1 % by weight crushed gemstone mineral selected from tourmaline, amethyst, and quartz, and about 1 % by weight of each of an opacifying agent selected from one or more of titanium dioxide, mica, and tin oxide, coconut oil, a solvent selected from one or more of mineral oil and corn germ oil, zinc oxide, a skin conditioner selected from one or more of grape leaf extract and grape seed oil, fragrance, and a coloring agent, the total of the ingredients being 100% by weight.

16. A method of removing hair from a location on human skin which comprises melting the composition of claim 1 , applying the melted composition to the skin location, allowing the composition to cool, and peeling the cooled composition from the skin location, whereby the hair on the location is removed.

17. The method of claim 16 wherein the crushed gemstone mineral is selected from tourmaline, amethyst, and quartz.

18. A method of removing hair from a location on human skin which comprises melting the composition of claim 13, applying the melted composition to the skin location, allowing the composition to cool, and peeling the cooled composition from the skin location, whereby the hair on the location is removed.

19. A method of removing hair from a location on human skin which comprises melting the composition of claim 14, applying the melted composition to the skin location, allowing the composition to cool, and peeling the cooled composition from the skin location, whereby the hair on the location is removed.

20. A method of removing hair from a location on human skin which comprises melting the composition of claim 15, applying the melted composition to the skin location, allowing the composition to cool, and peeling the cooled composition from the skin location, whereby the hair on the location is removed.