Antiperspirant/deodorant compositions include, in a cosmetically acceptable medium, (a) at least one cosmetic ingredient obtained from Bamboo, (b) at least one cosmetic ingredient obtained from Maranta arundinaceae (Arrowroot), (c) at least one natural starch, and (d) water. These antiperspirant/deodorant compositions are useful in reducing body odor and in wetness absorption. A method for the cosmetic treatment of body odors, in particular axillary odors, which includes applying, to the skin, in particular the axillae, these compositions is also described.

TECHNICAL FIELD

Antiperspirant/deodorant compositions include (a) at least one cosmetic ingredient obtained from Bamboo, (b) at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot); (c) at least one natural starch, and (d) water.

BACKGROUND

The information provided below is not admitted to be prior art to the present disclosure, but is provided solely to assist the understanding of the reader.

Deodorizing or masking of unpleasant body odor has been in practice for centuries.

Deodorants are preparations which have antimicrobial activity and which mask, remove, or decrease perspiration odor. Antiperspirants are substances which have astringent action and inhibit the flow of perspiration. Salts of metals such as aluminum, zirconium, zinc, etc. (for example, in the forms of aluminum chlorohydrate, aluminum chloride, aluminum chlorohydrate and aluminum-zirconium compounds, most notably aluminum zirconium tetrachlorohydrex gly), have astringent properties and are often used in antiperspirants.

Recently, concerns have been raised that aluminum can be absorbed into the bloodstream. Additionally, use of an aerosol antiperspirant containing aluminum allows for inhalation and may result in absorption of aluminum from the nasal recess.

There is therefore a need for antiperspirant/deodorant compositions, which are free of aluminum and aluminum zirconium salts, which have a high deodorizing effect against body odor for from about 4 to about 24 hours after application and, which are stable, homogeneous and exhibit a proper sensory feeling.

SUMMARY

Described herein is an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, (a) at least one cosmetic ingredient obtained from Bamboo, (b) at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot); and (c) at least one natural starch.

In an embodiment, the at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) is selected from Maranta arundinacea (Arrowroot) Leaf Extract, Maranta arundinacea (Arrowroot) Root Extract, Maranta arundinacea (Arrowroot) Root Powder, or mixtures thereof.

In an embodiment, the at least one cosmetic ingredient obtained from Bamboo (a) is present at a concentration ranging from about 0.1 to about 10 wt. %, based on the total weight of the composition.

In an embodiment, the at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) is present at a concentration ranging from about 0.1 to about 40 wt. %, based on the total weight of the composition.

In an embodiment, the natural starch (c) is present at a concentration ranging from about 1 to about 50 wt. %, based on the total weight of the composition.

In an embodiment, the antiperspirant/deodorant composition additionally includes at least one fatty compound selected from C6-C24 fatty alcohols, vegetable fats and oils, natural waxes or mixtures thereof.

In an embodiment, the at least one fatty compound selected from C6-C24 fatty alcohols, vegetable fats and oils and natural waxes is present at a total concentration ranging from about 1 to about 70 wt. %, based on the total weight of the composition.

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium:

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition is in the form of roll-on, gel, stick or cream.

An embodiment includes a method of cosmetically treating body odors, in particular axillary odors, which includes applying to the skin, in particular the axillae, an antiperspirant/deodorant composition as disclosed herein.

Described herein is also an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, in the antiperspirant/deodorant composition the least one cosmetic ingredient obtained from Bamboo (a) is present at a concentration ranging from about 0.5 to about 5 wt. %, based on the total weight of the composition.

In an embodiment, in the antiperspirant/deodorant composition the least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) is present at a concentration ranging from about 0.5 to about 35 wt. %, based on the total weight of the composition.

In an embodiment, in the antiperspirant/deodorant composition the least one natural starch (c) is present at a concentration ranging from about 3 to about 30 wt. %, based on the total weight of the composition.

In an embodiment, in the antiperspirant/deodorant composition water (d) is present at a concentration ranging from about 40 to about 80 wt. %, based on the total weight of the composition.

In an embodiment, in the antiperspirant/deodorant composition the at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) is selected from Maranta arundinacea (Arrowroot) Leaf Extract, Maranta arundinacea (Arrowroot) Root Extract, Maranta arundinacea (Arrowroot) Root Powder, or mixtures thereof.

In an embodiment, in the antiperspirant/deodorant composition, the total amount of the at least one cosmetic ingredient obtained from Bamboo (a), the at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) and the at least one natural starch (c) [sum of the total content of (a), (b) and (c)], ranges from about 5 to about 29 wt. %, based on the total weight of the composition:

In an embodiment, in the antiperspirant/deodorant composition the at least one solvent (e) is present at a total concentration ranging from about 1 to about 15 wt. %, based on the total weight of the composition.

In an embodiment, in the antiperspirant/deodorant composition the at least one deodorant additive (f) is present at a total concentration ranging from about 1 to about 15 wt. %, based on the total weight of the composition.

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

An embodiment disclosed herein includes an antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

An embodiment disclosed herein includes an antiperspirant antiperspirant/deodorant composition comprising, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition described herein is in the form of roll-on, gel or cream.

An embodiment includes a method of cosmetically treating body odors, in particular axillary odors, which includes applying to the skin, in particular the axillae, an antiperspirant/deodorant composition as disclosed herein.

DETAILED DESCRIPTION

Embodiments of the present disclosure are discussed in detail below. In describing embodiments, specific terminology is employed for the sake of clarity. However, the disclosure is not intended to be limited to the specific terminology so selected. While specific exemplary embodiments are discussed, it should be understood that this is done for illustration purposes only. A person skilled in the relevant art will recognize that other components and configurations can be used without parting from the spirit and scope of the disclosure. While a number of embodiments and features are described herein, it is to be understood that the various features of the disclosure and aspects of embodiments, even if described separately, may be combined unless mutually exclusive or contrary to the specific description. All references cited herein are incorporated by reference as if each had been individually incorporated.

The terms “about” or “approximately” as used herein shall generally mean within 10 percent of a given value. Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of ingredients and/or reaction conditions are to be understood as being modified in all instances by the term “about”.

The term “at least one” as used herein means one or more of the item to which the term makes reference.

The term “comprising” refers to optional compatible components/steps that can be used provided that the important ingredients/steps are present. The term “comprising” thus encompasses and includes the more restrictive terms “consisting of” and “consisting essentially of”.

The term “natural starch” (“unmodified or native starch”) as used herein refers to any starch which has not been subject to chemical, physical or enzymatic transformation by human intervention.

Cosmetically Acceptable Medium

The cosmetically acceptable medium is typically a medium comprising water and/or cosmetically acceptable organic solvents including, more particularly, alcohols such as ethyl alcohol, isopropyl alcohol, benzyl alcohol and phenylethyl alcohol; and glycols or glycol ethers such as, for example, glycerin (glycerol), monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propylene glycol (including all possible isomers such as propane-1,2-diol, propane-1,3-diol, propane-2,2-diol or propane-1,1-diol) or its ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, or dipropylene glycol, as well as alkyl ethers of diethylene glycol such as, for example, monoethyl ether or monobutyl ether of diethylene glycol.

Bamboo

Bamboo is an ancient woody grass widely distributed in tropical, subtropical and mild temperate zones. It is a major non-wood forest product. There are about 1,200 species of bamboo in some 90 genera.

Typically, the at least one cosmetic ingredient obtained from Bamboo (a) is selected from cosmetic ingredients obtained from Bambusa arundinacea, Bambusa textilis, Bambusa vulgaris, or mixtures thereof.

Bambusa arundinacea Seed Extract is the extract of the seeds of Bambusa arundinacea.

Bambusa arundinacea Juice is a liquid expressed from the joints of the Bambusa arundinacea tree.

Bambusa arundinacea Leaf Extract is the extract of the leaves of Bambusa arundinacea.

Bambusa arundinacea Sap Extract is the extract of the sap of Bambusa arundinacea.

Bambusa arundinacea Shoot Extract is the extract of the shoots of Bambusa arundinacea.

Bambusa arundinacea Stem Extract is the extract of the stems of Bambusa arundinacea.

Bambusa arundinacea Stem Powder is the powder obtained from the dried, ground stems of Bambusa arundinacea.

Bambusa textilis Stem Extract is the extract of the stems of Bambusa textilis.

Bambusa vulgaris Seed Extract is the extract of the seeds of Bambusa vulgaris.

Bambusa vulgaris Callus Culture Extract is the extract of a culture of the callus of Bambusa vulgaris.

Bambusa vulgaris Juice is a liquid expressed from the joints of the Bambusa arundinacea Vulgaris.

Bambusa vulgaris Leaf Extract is the extract of the leaves of Bambusa vulgaris.

Bambusa vulgaris Sap Extract is the extract of the sap of Bambusa vulgaris.

Bambusa vulgaris Shoot Extract is the extract of the shoots of Bambusa vulgaris.

Bambusa vulgaris Stem Extract is the extract of the stems of Bambusa vulgaris.

Bambusa vulgaris Stem Powder is the powder obtained from the dried, ground stems of Bambusa vulgaris.

In one embodiment, the antiperspirant/deodorant composition comprises Bambusa arundinacea Stem Powder.

Typically, in the antiperspirant/deodorant composition, the total amount of (a), the at least one cosmetic ingredient obtained from Bamboo, is in the range of about 0.1 to about 10 wt. %, or about 0.5 to about 5 wt. %, or about 0.8 to about 3 wt. %, based on the total weight of the composition.

In one embodiment, the antiperspirant/deodorant composition comprises Bambusa arundinacea Stem Powder, Bambusa vulgaris Stem Powder, or mixture thereof.

Maranta arundinacea (Arrowroot) Leaf Extract is the extract of the leaves of Maranta arundinacea.

Maranta arundinacea (Arrowroot) Root Extract is the extract of the roots of Maranta arundinacea.

Maranta arundinacea (Arrowroot) Root Powder is the powder obtained from the dried, ground roots of Maranta arundinacea.

In one embodiment, the antiperspirant/deodorant composition comprises Maranta arundinacea (Arrowroot) Root Powder.

Typically, in the antiperspirant/deodorant composition, the total amount of (b), the at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot), is in the range of about 0.1 to about 40 wt. %, or about 1 to about 35 wt. %, or about 3 to about 25 wt. %, or about 4 to about 20 wt. %, based on the total weight of the composition.

Natural Starch

Typically, natural starch (“unmodified or native starch”) refers to any starch which has not been subject to chemical, physical or enzymatic transformation by human intervention.

In one embodiment, the antiperspirant/deodorant composition comprises maize (corn) starch, tapioca starch, or mixtures thereof.

Typically, in the antiperspirant/deodorant composition, the total amount of (c), the natural starch, is in the range of about 1 to about 50 wt. %, or about 5 to about 40 wt. %, or about 12 to about 35 wt. %, or about 15 to about 32 wt. %, or about 20 to about 30 wt. %, based on the total weight of the composition.

Typically, in the antiperspirant/deodorant composition, the total amount of (c), the at least natural starch, is in the range of about 1 to about 50 wt. %, or about 2 to about 35 wt. %, or about 3 to about 30 wt. %, or about 3.5 to about 25 wt. %, or about 15 to about 35 wt. %, or about 20 to about 35 wt. %, or about 20 to about 30 wt. %, or about 2 to about 15 wt. %, or about 2 to about 10 wt. %, or about 3 to about 8 wt. %, or about 5 to about 10 wt. %, or about 4 to about 8 wt. %, or 5 wt. %, 6 wt. %, 7 wt. %, 8 wt. %, 9 wt. %, 10 wt. %, 11 wt. %, or 15 wt. %, about 30 wt. %, 35 wt. %, 40 wt. %, based on the total weight of the composition.

Typically, in the antiperspirant/deodorant composition, the amount of C6-C24 fatty alcohols is in the range of about 5 to about 20 wt. %, or about 6 to about 18 wt. %, or about 7 to about 15 wt. %, based on the total weight of the composition.

Vegetable Fats and Oils

For purposes of this disclosure, vegetable fats and oils are linear and/or branched esters, linear or branched, saturated and/or unsaturated alkanecarboxylic acids with a chain length of 1 up to 30 carbon atoms, saturated and/or unsaturated alcohols with a chain length of 1 up to 30 carbon atoms; or linear and/or branched esters of aromatic carboxylic acids, or saturated and/or unsaturated alcohols with a chain length of 1 up to 30 carbon atoms. These oils can be selected from the group including, for example, isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl oleate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, isooctyl stearate, isononyl stearate, isononyl isononanoate, 2-ethylhexyl laurate, 2-ethylhexyl palmitate, 2-ethylhexyl cocoate, 2-hexyldecyl stearate, 2-ethylhexyl isostearate, 2-octyldodecyl palmitate, cetyl palmitate, stearyl palmitate, oleyl palmitate, oleyl oleate, oleyl erucate, erucyl oleate, erucyl erucate, as well as synthetic, semisynthetic and natural mixtures of esters, such as jojoba oil (a natural mixture of esters of monounsaturated monocarboxylic acids with a C18-C24 chain and monounsaturated monoalcohols and with a long C18-C24 chain).

Other examples of vegetable fats and oils include ester oils such as sugar esters or diesters of C12-C24 fatty acids. The term “sugar” means compounds comprising several alcohol functions, with or without an aldehyde or ketone function, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides.

Non-limiting examples of sugars that may be used according to the present disclosure include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and derivatives thereof, including for example, alkyl derivatives such as methyl derivatives, for instance methylglucose. Non-limiting examples of the sugar esters of fatty acids that may be used according to this disclosure include those from the group comprising esters or mixtures of esters of sugars described above and of linear or branched, saturated or unsaturated C12-C24 fatty acids.

The esters may be chosen from mono-, di-, tri-, tetra- and polyesters, and mixtures thereof. These esters may be chosen from, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates, or mixtures thereof such as oleo-palmitate, oleo-stearate and palmito-stearate mixed esters. It will be noted that the sucrose, glucose or methylglucose monoesters and diesters and for example sucrose, glucose or methylglucose mono- or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearates, constitute sugar esters or diesters of C12-C24 fatty acids that are suitable in the context of the present disclosure. A non-limiting example is methylglucose dioleate.

Other suitable vegetable fats and oils are fatty acid triglycerides, including, for example, linear and/or branched triglycerin esters, saturated and/or unsaturated alkanecarboxylic acids with a chain length of 6 up to 24 carbon atoms, such as of 10 up to 18 carbon atoms. The fatty acids esterifying the different positions of glycerin can be different, giving rise to a large amount of possible combinations, including positional combinations. The position of the different fatty acids in natural triglycerides is not random, but rather it depends on the origin of the fat. The most simple triglycerides are those constituted by a sole fatty acid.

Typically, in the antiperspirant/deodorant composition, the amount of vegetable fats and oils is in the range of about 5 to about 60 wt. %, or about 10 to about 55 wt. %, or about 20 to about 50 wt. %, based on the total weight of the composition.

Natural Waxes

Typically, in the antiperspirant/deodorant composition, the amount of natural waxes is in the range of about 0 to about 5 wt. %, or about 0.1 to about 3 wt. %, or about 0.2 to about 2 wt. %, based on the total weight of the composition.

Typically, in the antiperspirant/deodorant composition, the total amount of the at least one fatty compound selected from C6-C24 fatty alcohols, vegetable fats and oils and natural waxes, i.e. the sum of the amount of each single ingredient, is in the range of about 1 to about 70 wt. %, or about 3 to about 65 wt. %, or about 5 to about 65 wt. %, or about 10 to about 62 wt. %, based on the total weight of the composition.

Water

Typically, the antiperspirant/deodorant composition may comprise water. The amount of water (d) is in the range of about 30 to about 85 wt. %, or about 35 to about 80 wt. %, or about 40 to about 80 wt. %, or about 40 to about 75 wt. %, or about 40 to about 60 wt. %, or about 40 to about 50 wt. %, or about 50 to about 60 wt. %, or about 60 to about 80 wt. %, or about 70 to about 80 wt. %, or about 30 wt. %, 35 wt. %, 40 wt. %, 45 wt. %, 50 wt. %, 55 wt. %, 60 wt. %, 65 wt. %, 70 wt. %, 75 wt. %, or 80 wt. % based on the total weight of the composition. In some implementations, the antiperspirant/deodorant composition may be free or substantially free of water.

Solvent

Typically, in the antiperspirant/deodorant composition, the total amount of (f), the at least one solvent, is in the range of about 0.5 to about 25 wt. %, or about 1 to about 20 wt. %, or about 1 to about 18 wt. %, or about 1 to about 15 wt. %, or about 10 to about 20 wt. %, or about 15 to about 20 wt. %, or about 10 to about 18 wt. %, or about 15 to about 20 wt. %, based on the total weight of the composition.

The Antiperspirant/Deodorant Composition

The antiperspirant/deodorant composition may include, in a cosmetically acceptable medium:

The at least one cosmetic ingredient obtained from Bamboo (a) may be present at a concentration ranging from about 0.1 to about 10 wt. %, or about 0.5 to about 5 wt. %, or about 0.8 to about 1 wt. %, based on the total weight of the composition.

The at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) may be present at a concentration ranging from about 0.1 to about 40 wt. %, or about 1 to about 35 wt. %, or about 3 to about 25 wt. %, or about 4 to about 20 wt. %, based on the total weight of the composition.

The natural starch (c) may be present at a concentration ranging from about 1 to about 50 wt. %, or about 5 to about 40 wt. %, or about 12 to about 35 wt. %, or about 15 to about 32 wt. %, or about 20 to about 30 wt. %, based on the total weight of the composition.

In an embodiment, the antiperspirant/deodorant composition additionally comprises at least one fatty compound selected from C6-C24 fatty alcohols, vegetable fats and oils and natural waxes.

The at least one fatty compound selected from C6-C24 fatty alcohols, vegetable fats and oils and natural waxes may be present at a total concentration ranging from about 1 to about 70 wt. %, such as about 3 to about 68 wt. %, based on the total weight of the composition.

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

Other Ingredients

The antiperspirant/deodorant compositions of the present disclosure may contain additional optional components. Additional optional components may include, for example, additional deodorant actives, pigments, perfumes or fragrances, thickeners, particulate and filler materials, distributing agents, emulsifiers, wash-off agents, bacteriostats, fungistats, additives, and mixtures thereof. Optional components useful herein are described in, for example, the International Cosmetic Ingredient Dictionary and Handbook by CTFA, 10th Edition (2004).

The antiperspirant/deodorant compositions may also contain inorganic pigments. Suitable inorganic pigments include, but are not limited to, those having a color index number as listed in the CTFA dictionary, 10th edition, 2004, hereby incorporated by reference.

For purposes of this disclosure, the term “fragrance” refers to any substance, natural or synthetic, used to impart an odor to a product.

For purposes of this disclosure, the term “perfume” refers to any mixture of fragrant essential oils and aroma compounds, fixatives, and solvents used to give the human body, objects, and living spaces a lasting and pleasant smell.

When perfumes or fragrances are used, they may be present at concentrations up to around 4%, such as from about 0.25 to about 3 wt. %, based on the total weight of the composition.

Thickeners may include, but are not limited to, anionic, synthetic polymers, cationic synthetic polymers, naturally occurring thickeners, such as nonionic guar gums, scleroglucan gums or xanthan gums, gum arabic, gum ghatti, karaya gum, tragacanth gum, carrageenan gum, agar-agar, locust bean gum, pectins, alginates, starch fractions, and derivatives such as amylose, amylopectin, and dextrins, as well as cellulose and cellulose derivatives such as, for example, methylcellulose, carboxyalkylcelluloses, and hydroxyalkylcelluloses, nonionic, fully synthetic polymers, such as polyvinyl alcohol or polyvinylpyrrolidinone; as well as inorganic thickeners, in particular phyllosilicates such as, for example, bentonite, in particular smectites, such as montmorillonite or hectorite. Thickeners may be included at from about 0.001-20 wt. %, or about 0.005-15 wt. %, or about 0.01-12 wt. %, based on the total weight of the composition.

Particulate and filler materials also may be included. These materials may be included at from about 0.001-5 wt. %, or about 0.5-3 wt. %, based on the total weight of the composition. Suitable filler materials include colloidial silica (such as Cab-O-Sil, sold by Cabot Corp), clays (such as bentonite, diatomite, illite, kaolin clay, montmorillonite and the like), hydrophobic (quaternized) clays, silica/alumina thickeners, silicate powders such as talc, alumina silicate, and magnesium silicate, metallic stearates, and mixtures thereof.

Emulsifiers may include non-ionic surfactants useful for forming water-in-oil emulsions. The level of emulsifiers used in the present invention may be about 0.001-10 wt. %, or about 0.5-5 wt. %, based on the total weight of the composition. Non-limiting examples of emulsifiers include polyoxyethylene ethers of fatty alcohols, and polyoxyethylene-polysiloxane copolymers.

Wash-off agents may be utilized to improve the ease with which the ingredients, particularly the C6-C24 fatty alcohols, vegetable fats and oils and natural waxes, may be washed off from skin or clothing. The wash-off agent may be a non-liquid. The wash-off agent may be present at about 0.001-10 wt. %, or 0.5-5 wt. %, based on the total weight of the composition. Wash-off agents may include nonionic surfactants such as esters or ethers containing a C4 to C22 alkyl moiety and a hydrophilic moiety which can comprise a polyoxyalkylene group (POE or POP) and/or a polyol. Non-limiting examples of wash-off agents include: ceteth-2 through ceteth-30, steareth-2 through steareth-30, such as steareth-21, ceteareth-2 through ceteareth-30, such as ceteareth-20, PEG-2 stearate through PEG-30 stearate, such as PEG-20 stearate, PEG-12 isostearate, PEG-16 hydrogenated castor oil, PEG-40 hydrogenated castor oil, and PEG-20 glyceryl stearate.

Further optional components may include skin benefit agents, such as allantoin or lipids, in an amount up to about 5 wt. % based on the total weight of the composition, skin cooling agents other than the already mentioned alcohols, such as menthol and menthol derivatives, in an amount up to about 2 wt. % based on the total weight of the composition.

No particular limitation is imposed on the form of the antiperspirant/deodorant compositions of the present disclosure. Examples include roll-on, gel, stick or cream.

The antiperspirant/deodorant composition may include, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, the antiperspirant/deodorant composition comprises, in a cosmetically acceptable medium, based on the total weight of the composition:

In an embodiment, in the antiperspirant/deodorant composition the total amount of the at least one cosmetic ingredient obtained from Bamboo (a), the at least one cosmetic ingredient obtained from Maranta arundinacea (Arrowroot) (b) and the at least one natural starch (c) have a sum total in the composition of about 1 to about 40 wt. %, based on the total weight of the composition. In another embodiment, the sum total of (a), (b), and (c) may be about 1 to about 35 wt. %, about 5 to about 30 wt. %, about 5 to about 29 wt. %, about 10 to about 30 wt. %, about 15 to about 30 wt. %, about 5 to about 15 wt. %, about, about 5 to about 10 wt. %, about 10 to about 40 wt. %, about 20 to about 40 wt. %, about 30 to about 40 wt. %, about 31 to about 40 wt. %, or about 5 wt. %, 6 wt. %, 7 wt. %, 8 wt %, 9 wt. %, 10 wt %, 15 wt. %, 20 wt. %, 25 wt. %, 30 wt. %, 35 wt. %, or 40 wt. %.

Typically, the antiperspirant/deodorant compositions of the present disclosure are in the form of a roll-on, a gel or a cream.

The antiperspirant/deodorant compositions of the present disclosure may contain additional optional components. Additional optional components may include, as described above, pigments, perfumes or fragrances, thickeners, particulate and filler materials, distributing agents, emulsifiers, wash-off agents, bacteriostats, fungistats, and mixtures thereof. Optional components useful herein are described in, for example, the International Cosmetic Ingredient Dictionary and Handbook by CTFA, 10th Edition (2004).

Method of Cosmetically Treating Body Odor

An embodiment includes a method of cosmetically treating body odor, in particular axillary odor, which includes applying to the skin, in particular the axillae, an antiperspirant/deodorant composition as disclosed herein.

EXAMPLES

The following examples are given in order to provide a person skilled in the art with a sufficiently clear and complete explanation of the present disclosure, but should not be considered as limiting of the essential aspects of its subject, as set out in the preceding portions of this description. Similarly, all percentages are weight/weight percentages unless otherwise indicated. Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description and claims indicating amounts of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word “about”. “About” is understood to mean that a given value could vary by 10%. Numerical ranges expressed in the format “from x to y” are understood to include x and y. When for a specific feature multiple preferred ranges are described in the format “from x to y”, it is understood that all ranges combining the different endpoints are also contemplated.

The compositions of Table 1 and Table 2 were prepared by placing the oil(s), fatty alcohol(s) and wax(es) (when present) in a main kettle having a homogenizer mill attached and heating to about 85-95° C. Once this mixture became molten, the milling started while maintaining the temperature at about 85-95° C. until complete homogenization. The mixture was further milled for about 15 minutes.

Caprylic/capric triglyceride and triethyl citrate (when present) were charged in a side kettle fitted with a homogenizer mill. This mixture was agitated and corn starch was added to the side kettle. The mixture was agitated until complete homogenization.

Arrowroot Root Extract was added to the side kettle while maintaining the agitation. The mixture was agitated until complete homogenization.

Bamboo powder, a thickener (when present), a filler (when present) and sodium bicarbonate (when present) were added to the side kettle while maintaining the agitation. The mixture was agitated until complete homogenization, which took about 15 min. Then the mixture was agitated again for about 30 min at a temperature of about 50-65° C. After that, tapioca starch was added to the side kettle while maintaining the temperature of about 50-65° C. The mixture was agitated until complete homogenization.

The mixture of the side kettle was transferred into the main kettle at a temperature of about 55-65° C. The mixture was agitated (at least for 15 min) until complete homogenization.

The fragrance was added to the main kettle at a temperature of about 55-65° C. The mixture was agitated (at least for 15 min) until complete homogenization.

The final mixture was cooled to 25° C.

on the total weight of the composition).

(Arrowroot) Root Extract

Stem Powder

Antiperspirant/deodorant compositions (wt. % based on the

total weight of the composition).

(Arrowroot) Root Extract

Stem Powder

Consumer Test

The antiperspirant/deodorant composition C8 described above was tested in terms of wetness perception and odor protection in a consumer test.

23 panelists used the product daily for 2 weeks. A week prior to the start the study, the panelists were provided a blinded deodorant stick. They were instructed to use the stick for 7 days as a precautionary measure to help wash out aluminum salts from the axilla of antiperspirant users.

Following 2 weeks of product use, panelists made one final application and immediately answered an initial application questionnaire. Panelists were instructed not to shower or apply any other underarm product for the next 24 hours. 8 hours and 24 hours following application, the panelists answered additional wear questionnaires. Questionnaire data was analyzed by the Qualtrics software.

21 of 23 panelist rated from good to excellent the overall wear at 8 hours. 21 of 23 panelist rated from good to excellent the overall wear at 24 hours.

23 of 23 panelist rated from good to excellent the underarm feel dry sensation at 8 hours. 20 of 23 panelist rated from good to excellent the underarm feel dry sensation at 24 hours.

23 of 23 panelist rated from good to excellent the no underarm odor at 8 hours. 17 of 23 panelist rated from good to excellent the no underarm odor at 24 hours.

From the experimental results, it can be concluded that the antiperspirant/deodorant compositions of the present disclosure exhibit clear wetness efficacy that persisted for up to 24 hours.

Instrumental Test

The wetness absorption efficacy of composition C9 described above and the commercially available products listed below (Comparative Experiments 1-4) was tested using the protocol indicated below.

CE2. Love Beauty and Planet Argan Oil & Lavender Relaxing Deodorant (Stick)

Each of these compositions were applied to a panel of 20 volunteers. The compositions were applied to the back of the volunteers. For each product there was an untreated control area located on the contralateral area. The size of the test area (treated and untreated) was about 2 cm×3.5 cm. About 40 mg of the product was applied (approximately 2 mg/cm3).

The panelists came to the study site. The products were applied and distributed on the test area as described above. After 20 minutes of adsorption time, panelists were allowed to leave the study site. Panelists returned to the study site more than 30 minutes prior instrumental measurements and remained in a climatized room (26±2° C. and 50±5% relative humidity) until measurements started 4 hours (± minutes) after application.

During measurements, panelists lied in prone position and dielectric permittivity of each test area (treated and untreated) was determined by using Epsilon Model E100 (Biox Systems Ltd) as described in Malcher B, et al. “Capacitive Contact Imaging-New Clinical Screening Method for Aluminum Free Products”. SOFW 2019; 145 (3): 28-34.

The all tested products shown a statistically significant relative capacitance reduction (95% Confidence Interval), which correlates to sweat reduction. The results are indicated in Table 3.

Average of Relative Capacitance Reduction

(%) 4 hours after application

Relative Capacitance

Composition
Reduction

Composition C9 showed a higher relative capacitance reduction when compared to commercially available products CE1 to CE4.

From the experimental results, it can be concluded that the antiperspirant/deodorant compositions of the present disclosure exhibit clear sweat reduction.

ADDITIONAL EXAMPLES

The compositions of Table 4, Table 5 and Table 6 were prepared.

Antiperspirant/deodorant (in cream form) compositions (wt. % based on the total

weight of the composition).

Root Extract

Stem Powder

Powder

Carbonate Hydroxide

Antiperspirant/deodorant (gel form) compositions (wt. % based on the total weight of

the composition).

Root Extract

Stem Powder

Powder

Carbonate Hydroxide

(wt. % based on the total weight of the composition).

Root Extract

Stem Powder

Powder

Carbonate Hydroxide

Instrumental Test A

The wetness absorption efficacy of compositions C15, C17 and C18 described in Table 5 above and a Comparative Experiment (CE5) was tested using the protocol indicated below.

CE5. Hi & Dry Stick for Men (Stick)

Each of these compositions were applied to a panel of 22 volunteers. The compositions were applied to the back of the volunteers. For each product there was an untreated control area located on the contralateral area. The size of the test area (treated and untreated) was about 2 cm×3.5 cm. About 40 mg of the product was applied (approximately 2 mg/cm3).

The panelists came to the study site. The products were applied and distributed on the test area as described above. After 20 minutes of adsorption time, panelists were allowed to leave the study site. Panelists returned to the study site more than 30 minutes prior instrumental measurements and remained in a climatized room (26±2° C. and 50±5% relative humidity) until measurements started 4 hours (+20 minutes) after application.

During measurements, panelists lied in prone position and dielectric permittivity of each test area (treated and untreated) was determined by using Epsilon Model E100 (Biox Systems Ltd) as described in Malcher B, et al. “Capacitive Contact Imaging-New Clinical Screening Method for Aluminum Free Products”. SOFW 2019; 145 (3): 28-34.

Compositions C15, C17 and C18 showed a statistically significant relative capacitance reduction (95% Confidence Interval), which correlates to sweat reduction. The results are indicated in Table 7.

Average of Relative Capacitance Reduction (%) 4 hours after application

Product
Relative Capacitance Reduction

Compositions C15, C17 and C18 showed a higher relative capacitance reduction when compared to Comparative Experiment CE5, which can be correlated to an improved sweat reduction.

Instrumental Test B

The wetness absorption efficacy of compositions C20 and C21 described in Table 6 above and a Comparative Experiment (CE6) was tested using the same protocol indicated above (Instrumental test A)

CE6. Comfy Boys Chocolate—Intimate Deodorant for Men (Lotion)

Compositions C20 and C21 showed a statistically significant relative capacitance reduction (95% Confidence Interval), which correlates to sweat reduction. The results are indicated in Table 8.

Average of Relative Capacitance Reduction (%) 4 hours after application

Product
Relative Capacitance Reduction

Compositions C20 and 21 showed a higher relative capacitance reduction when compared to Comparative Experiment CE6, which can be correlated to an improved sweat reduction.

Instrumental Test C

The wetness absorption efficacy of composition C25 described in Table 7 above and Comparative Experiments CE7, CE8 and CE9, was tested using the same protocol indicated above (Instrumental test A)

Composition C25 showed a statistically significant relative capacitance reduction (95% Confidence Interval), which correlates to sweat reduction. The results are indicated in Table 9.

Average of Relative Capacitance Reduction (%) 4 hours after application

Product
Relative Capacitance Reduction

Composition C25 showed a higher relative capacitance reduction when compared to Comparative Experiments CE7, CE8 and CE9 (negative capacitance reduction values were measured for these Comparative Experiments), which can be correlated to an improved sweat reduction.

Modifications, which do not affect, alter, change or modify the essential aspects of the compositions and methods described above, are included within the scope of the present disclosure.