CA2082813A1 - Liquid antiperspirant compositions - Google Patents

Abstract

Disclosed are clear sprayable liquid antiperspirant compositions having viscosities of less than about 15 centistokes, comprising:
an antiperspirant salt which is soluble, and which will remain soluble, in a monohydric alcohol solvent; high levels (30 % or greater) of emollient esters and silicone materials, having viscosities of from about 0.65 centistokes to about 50 centistokes, and solubility parameters of from about 4 to about 10; a surfactant solubilizer which is selected from the group consisting of ethoxylated or propoxylated nonionic surfactants having an HLB of from about 5 to about 18, and mixtures thereof, such that the average HLB of the solubilizer is from about 8 to about 14; and relatively low levels (less than about 50 %) of a monohydric alcohol solvent: wherein the antiperspirant compositions comprise no more than about 5 % water. These antiperspirant compositions provide excellent antiperspirancy and cosmetic in-use properties. They are non-sticky, non-greasy, and quick drying. They stain clothing less than other spray-on liquid antiperspirants. These compositions go onto the skin as a clear spray and leave no white, chalky, residue on skin upon dry down. These antiperspirant compositions also remain stable over time and a broad range of physical conditions, especially ambient temperatures.

Description

`~ 2~82~1~
wo 91/18587 PCr/US91/026~, LIQUID ANTIPERSPIRANT COMPOSITIONS

~ L ~ u S The present invention relates to unique clear, sprayable, liquiu an.,.e,,~l.ant cvm?os,~ ons having viscosities of less than about !i cQntistokes and ~ihich provide excellent intiperspirancy an~ r~ r~

.~n~ i sa nt c 'i~ pOs !;i on ~ hâve oecome part of many people's pers~nal ca,e arb g ^cming regimen. ~he formulation of such comDositions~ ho~ever, yeneraliy is an exercise in efficacy and aesthetic .rade-offs~ with the resulting composition being acceptable overall, but not outstanding~ For example, the 15 formulation of a composition to give it good usage aesthetic properties (e.g., minimized residue on the skin, and/or a clean, dry and non-sticky feel) often compromises antiperspirant efficacy. It is particularly difficult to maximize usage aesthetics and efficacy, when creating a low-viscosity liquid 20 product, such as a spray-on antiperspirant composition, and maintain good physical properties (e.g., stability o~er time and a broad range of physical conditions, esDecially stability over a broad temperature range).
Nonaerosol pump spray antiperspirant compositions, in 25 general, are known, having been disclosed in, for example, U.S.
Patent 4,053,581, Pader et al., issued October 11, 1977; U.S.
Patent 4,06i,564, Miles, Jr.~ issued December 27, 1977; U.S.
Patent 4,073,880, Pader et al., issued February 14, 1978; and Great Britain Application 1,536,222, published December 20, 1978.
Generally, such compositions comprise high levels of an alcohol solYent. Formulation in such a way generally results in products with poor in-use characteristics, i.e., residue on skin, sticky, cold feel, and stinging upon application.
Hence, it is an object of the present invention to provide a low viscosity, clear, sprayable, liquid antiperspirant composition W O 91/18587 ~ V ~ 2 X 1 ~ PCT/~S91/026<

which exhibits excellent antiperspirancy and cosmetic in-use properties.
It is also an object of the present invention tO prOYi(~e l low viscosity, clear, spray2ble, liqui~ an~iperspinal~ co:,~pos. :o,.
which is physically and chemically stable over time and a broad range of physical conditions.
These and other objects ~ill become readily ~pparen- r~om `'-e deta;led description ~hich follows.
SU~.~1A~ 0~ T~
The present invention rela~es ~o c ie~?~ i?U~ o a~
antiperspirant solutions, ha~/ing a visoosity o,^ less ~na, a~vu; l~
centistokes, comprising:
a. from about 10% to about 25% of a monohvdric alcnho1-co1 uble antiperspirant salt;
b. from about 3% to about 1~% of a non-volatile silicone emollient having a viscosity of from about l centistoke to about 50 centistokes and a solubility parameter of from about 4 to about 9;
c. from about 5X to about 25% of a volatile silicone emollient having a viscosity of from about 0.65 centistokes to about I0 centistokes and a solubility parameter of from about 4 to about 9;
d. from about 5% to about 20~ of a non-volatile emollient ester having a solubility parameter of from about 7 to about 10;
e. from about 1% to about 12~ of a solubilizer comprising an agent selected fro~ the group consisting of ethoxylated and propoxylated nonionic surfactants having an HLB of from about 5 to about 18, and mixtures thereof;
such that the average HLB of the solubilizer is from about 8 to about l4; and f. from about 30X to about 5070 of a monohydric alcohol solvent;
wherein the antiperspirant composition comprises no more than about 5% water.

W o 91/18~87 2 0 ~ 2 ~ }~CT/~S91/026X-A preferred composition of the present invention comprises a clear, sprayable, liquid antiperspirant solution, having a viscosity of less than about lS centistokes, comprising:
a. from about 14X to about 16`~o of an ethanol-solubie sesquichlorohydrate antiperspirant salt;
b. from about 3~ ~o about lC~ of a non-volat,l~ ~iliev,,a emollient selected from the group consisting of phenyl dimethicone, phenyl trimethicone, dimethicon~ ~luids hav,.
viscosities of from about 1 centis~oke ~o abou. i~
centistokes, and mixtures thereof;
c. from about lCX to about 15~ of a volatile silicone emollient selected from the group consisting Qt O~-~S
cyclomethicones, phenethyl pentamethyl disiloxane~
dimethicone fluids having viscosities of less than centistoke, and mixtures thereof;
d. from about gX to about 11% of a non-volatile emollient selected from the group consisting of Cl2-C~s alcohols benzoate, isopropyl myristate, isopropyl palmitate, and mixtures thereof;
e. from about lX to about 2% of a solubilizer which is selected from the group consising of:
A. ethoxylated nonionic surfactant materials selected from the group consisting of compounds of the formula:
CH3(CH2)x(OCH2cH2)noH
wherein x is 12, 14, 16, or 18, and n is 10, and mixtures thereof;
B. ethoxylated nonionic surfactant materials selected from the group consisting of compounds of the formula:
CH3(CH2)x(OCH2cH2)noH
wherein x is 12, 14, 16, or 18, and n is 20, and mixtures thereof;
and mixtures of A and Bi such that the average HLB of the solubilizer is from about 8 to about 14, and wherein if A and B are both present, they are at a ratio of A to B of from about 2:1 to about 1:2;

w o 91/l8587 PCT/US91/026~

f. from about 5Xo to about 8X. of a co-solubilizer which is selected rrom the group consisting of propylene glycol (n) stearyl ether, ~nere n is on the average from 10-16, and pnop~ 97~col ~n) ;~ riity1 ether, ~here n is on the aver~ne t`rom 2-10, and mixtures thereofi and .. ,,~v", ~vu~ c~ ~7~. of ath~nol;
~herain the antiperspirant composition comprises no more than r.
v~T~ ;V~C'\'~ '~,Y vF T!~ Q~
iO ~ n;i~ eli ~ oQ~io,lal components of the present co."pcsi io"s arY d~sc,i^ea belcl~.
4n.ioers~inant Mat~rial ~ critical comoonent c- the present compositions is an antiperspirant material that i, soluble and which remains soluble in ethanol or another suitable monohydric alcohol solvent.
Solubilization of the antiperspirant material allows for the formulation of the present clear antiperspirant solutions.
A variety of publications disclose antiperspirant actives which are soluble in non-aqueous solvents, typically monohydric alcohols (e.g., ethanol). U.S. Patent 3,873,686, Beekman, issued March 25, 1975, (incorporated herein by reference) provides a useful summary of work in this area. The following publications relate to antiperspirant actives soluble in non-aqueous solvents and/or processes for making such actives: U.S. Patent 3,359,169, Slater et al., issued December 19, 1967; U.S. Patent 3,420,932, Jones et al., issued January 7~ 196g; U.S. Patent 3,507,896t Jones et al., issued April 21, !.970; U.S. Patent 3,523,130, Jones et al., issued August 4, 1970i U.S. Patent 3,555,146, Jones et al., issued January 12, 1971; U.S. Patent 3,876,758, Beekman, issued April 8, 1975i Great Britain Patent Speciflcations 1,159?685 and 1,159,686, both oublished July 30, 1969, Armour Pharmaceutical Company; and European Published Patent Application, 7,191, published January 23, 1980, Unilever Limited.
U.S. Patent 2,890,987, Hilfer, issued June 16, 1959, describes the preDaration of relatively dilute solutlons of W O 91/18587 2 ~ ~ 2 ~ 1 ~ PC~r/~'S91/02687 astringent aluminum compounds in propy)ene glycol having rela~ively h,gh water con-ent. U.S. Pa~ent 4,13~,306, Rubino et al~ sued Oanuary 30, 1379~ d~scribes anhydrous propylene glycol solu~l~n, . ~ conol io~ub7e a~ gen, ba~7c aluminum compounds.
Any alu~inum astringent antiperspirant salt or aluminum and,!on _~r!~n~.um 1st-ingant complr-.Y ~hat is soluble, and which remains snlubl~ in the present alcohol solvent can be used herein.
S~l '.S ~ s ~;~gen~ lntlpers~i,ant salts or as components a.~ as~n ;~ - ~m~pl~x~ ncll~d~ a7u~inum halides, aluminum iO ;~ in~ u~ `'nai 'I(iei~ C~nyl hydroxyhalides, and m i x ~ `a ~ ~ t. i~s~ a~
A1~imlilU,~ sai ~S or cnis ~ype include aiuminum chloride and the aluminum n~droxyhalides haYing the general formula Al2(0H)XQy-XH20 where Q is chloride, bromide, or iodide (preferably chloride); x is from about 2 to about 5, and x + y = abôut 6, and x and y do not need to be integers; and where x is from about 1 to about 6.
Aluminum salts of this type can be prepared in the manner described more fully in U.S. Patent 3,887,692, Gilman, issued ~une 3, 1975, and U.S. Patent 3,904,741, Jones and Rubino, issued September 9, 1975, incorporated herein by reference.
The zirconium compounds which may be used in the present invention include both zirconium oxy salts and zirconium hydroxy salts, also referred to as the zirconyl salts and zirconyl hydroxy salts. These compounds may be represented by the following general empirical formùla:
ZrO(OH~ 2 -~28Z
wherein z may Yary from about 0.9 to about 2 and need not be an integer; n is the Yalence of B; 2-nz is greater than or equal to O; and B may be selected from the group consisting of halides (preferably chloride), nitrate, sulfamate, sulfate, and mixtures thereof. Although only zirconium compounds are exemplified in this specification, it will be understood that other Group IVB
metal compounds, including hafnium, could be used in the present invention.

wo gl/18587 ~ D ~ w ~ t ~J PCT/~S91/026~

As with the basic aluminum compounds, it will be understood that the above formula is greatly simplified and is i.,te"d d ~o represent and include compounds having coordinated and/or bound water in various quantities, as well as poly;"~a.As, ,.,l~;..e~
complexes of the above. As will be seen from the above tormula.
the zirconium hydroxy salt~ actually represent a ^~n~e !~
compounds having various amounts of the hydroxy group~ var~ing from about 1.1 to only slightly great~r thail ~ g~ou~
molecule.
Several types o' an~i~er~3iran. ccm~lex^à u'~ H`~
antiperspirant salts are '~nown in the ar~ O`~A examp ia~ b.J.
Patent 3!;32,06~, Luedders e. al~, issueu Febtuary i ~ ii,;.
discloses complexes of aluminum, zirconium, and amino acidâ àuch as glycines~ Complexes such as those disclosed in the Luedders e~
al. patent and other similar complexes are commonly known as ZAG~
ZAG complexes are chemically analyzable for the presence of aluminum, zirconium, and chlorine. ZAG complexes useful herein are identified by the specification of both the molar ratio of aluminum to zirconium (hereinafter ~Al:Zr~ ratio) and the molar ratio of total metal to chlorine (hereinafter "Metal:Cl n ratio).
ZAG complexes useful herein have an Al:Zr ratio of from about 1.67 to about 12.5 and a Metal:Cl ratio of from about 0.~3 to about 1.93.
Preferred ZAG complexes are formed by (A) co-dissolving in water (1) one part Al2(0H)6 mQm, wherein Q is an anion selected from the group consisting of chloride, bromide, and iodide; and m is from about 0.8 to about 2.0;

(2) x parts Zr0(0H)2 aQa-nH20, where q is chloride, bromide, or iodide; a is from about 1 to about 2; n is from about 1 to about 8; and x is from about 0.16 to about 1.2;

(3) p parts neutral amino acid selected from the group consisting of glycine, dl-tryptophane, dl-~-phenyl-alanine, dl-valine, dl-methionine, and ~-alanine, and ` w o 91~18587 2 ~ ~ 2 ~ ~ ~ PCT/~S91/026~~

where p is from about 0.06 to about 0.53;
(B) codrying the resultant mlxture to a friable solid; and (C) reducing the resultant dried inorganic-organic antiper-spirant complex to a particulate ,orm.
A preferred aluminum compound for preparation of such ZAG
type complexes is aluminum chlorhydroxide of the empirical fo~ula Al2(0H)sCl-2H20. Preferred zlrconium compounds for preoaration of such ZAG-type complexes are zirconyl hydroxychloride h3~in~ t~
empirical formula ~rO(OH)Cl~3H20 and the ~,rconyl hyd a~yhal~das of the empirical formula ZrO(OH)2 aCl2-l-;i20 wherein a is l~o about 1.5 to about 1.87, and n is from abou. 1 to about ~. ~he preferred amino acid for preparing suci~ LAG-type comDlexes is glycine of the formula CH2(HN2)COOH~ Salts of sùch amino acids can also be employed in the antiperspirant complexes~ See U.S.
Patent 4,017,599, Rubino, issued April 12, 1977, incorporated herein by reference.
A wide variety of other types of antiperspirant complexes are also known in the art. For example, U.S. Patent 3,903,258, Siegal, issued September 2, 1975, discloses a zirconium aluminum co~plex prepared by reacting zirconyl chloride with aluminum hydroxide and aluminum chlorhydroxide. U.S. Patent 3,979,510, Rubino, issued September 7, 1976, discloses an antiperspirant complex formed from certain aluminum compounds, certain zirconium compounds, and certain complex aluminum buffers. U.S. Patent 3,981,8S6, issued September 21, 1976, discloses an antiperspirant complex prepared from an aluminum polyol compound, a ~irconium compound and an organic buffer. U.S. Patent 3,9~0,748, ~ecca, issued July 20, 1976, discloses an aluminum chlorhydroxy glycinate complex of the appropriate general formula ~Al2(0H)~Cl][H2CNH2-COOH]. All of these patents are incorporated by reference herein.
Of all of the above types of antiperspirant act;ves, preferred compounds include the 5/6 basic aluminum salts of the empirical formula Al2(0H)sC1-2H20; mixtures of AlCl3-6H20 and Al2(0H)sC1-2H20 with aluminum chloride to aluminum hydroxychloride weight ratios of up to about 0.5; ZAG type complexes wherein the W o 91/18587 2 ~ PCT/~S91/026 zirconium salt is Zr0t0H)Cl-3H20, the aluminum salt is Al2(0H)5Cl-~H20 or Lhe arorementioned mixtures of AlCl3-6H20 and Al2(0H)sCl-ZH20 wherein the total metal to chloride molar ratio in the co~npieV is ~ n ai`~ou~ i.^i and he ~:2r molar ratio is about 3.3. and the amino acid is glycine; and the ZAG-type complexes .Yhe in ~h z~. n.u;, alt is ,'(n.Y)2.aCla nH20 ~her~in a is from abollt l~ to abollt l.37 and n is from about 1 to about ~, the ~lui,n:m a i~ ~7.(~ Cl !l 0, and `he amino acid is glycine.
~ r;^^ ~ d ~ t ~ s use~ul i~ ~h~
c;~ ?~ n1C o~ u~ntioll are antiperspirant actives wi~n ~nl2no~ errica y due 'o ~mproYed rclecular distribution.
~luminum calorilyarovide sal;~ zlrconyl hydroxychloride salts, and mixtures thereof naving i~,oved molecular distributions are known, having b~en disclosea, for example, in the following documents, all incorporated by reference herein: U.S. Patent 4,359,456, Gosling et al., issued November 16, 1982; European Published Patent Application 6,739, Unilever Ltd., published ~anuary 9, 1980; European Published Patent Application, 183,171, Armour Pharmaceutical Company, published June 4, 1986; British Patent Specification 2,048,229, The Gillette Company, published December 10, 1980; European Published Patent Appl kation 191,628, Unilever PLC, published August 20~ 1986; and British Patent Specification 2,144,992, The Gillette Company, pùblished March 20, 1985.
The improved molecular distribution is determined by the known analysis method called gel permeation chromatography. This analysis method is described, for example, in several of the above-incorporated patent specifications as well as in European Published Patent Application 7,191, Unilever Ltd., published January 23, 1980, the disclosures of wh kh are incorporated herein. It is preferred for purposes of the present invention that the antiperspirant actives utilized have enhanced efficacy due to improved molecular distribution with a ratio of peak 4 to peak, 3 greater than about 0.1:1 as dPtermined by gel permeatlon chromatography. This ratio, as is recognized by one skilled in w o 91/18587 2 o ~ ~? ~ 1 ~ PCT/~'S91/0268/

the art, relates to the relative area under those two peaks as measured by ~"e yel ~elme2~ion chromatography analysis method.
,~iynly desiraDle an~ip~rspirant salts for use herein are selec;ed ~ s`!m ;ii~ ~jl 011~ cùn~ rlg ùr aiuminum chlorohydrex (sold under the name ~Phydrol9, by Reheis Chemical Company), aluminum chlo,on~_ra~ '~^, alu~inum chloroh,ydre~ PG, aluminum sesqui-chlorohvdrate~ aluminum se~quichlorohydrex PEG, aluminum ses pm C.` I ore"~dr~ `i'.. tni ~ t~lrs~ thereof. All of these mat 'r 1 al . a;`a ,a a;`: '. ^" '' ` :~, ` S a ~'_ .'a .' `Jic ~ a ~ r r ay-on compositions.
T;l`~ i i"~ n~ ja~ use ner~in is aluminum sesquich70roilJIra'~.
U.S. ~acen; ~,ù53~ aaer e~ al., issued October 11, 1977;
U.S. Pat~nt l1~065~o~ iles Jr. et al.. issued December 27, 1977;
and U~S. Patent ~,û73,380, ?ader et al., issued February 14, 1978;
all disclose formulations for pump-spray or roll-on antiperspir-ants comprising alcohol-soluble aluminum chlorohydroxide antiper-spirant salts, an alcohol vehicle, and silicone materials.
The antiperspirant salt is present in the liquid antiperspirant compositions of the present invention at a level of from about 1~X to about 25X, preferably from about 14% to about 16%. These weight percentages are calculated on an anhydrous metal salt basis (exclusive of glycine, the salts of glycine, or other complexing agents).
Solvent for the Anti~ersDirant Salt The antiperspirant salts of the present invention are solubilized in a solvent. Suitable solvents include monohydric alcohols, especially C2-C, monohydric alcohols. The preferred solvent for use herein is ethanol. A small amount of water is also necessary in the present compositions to solubilize the antiperspirant material. However, the present compositions will comprise no more than about 5%, preferably no more than about 2.5X, water.
The solvent is present in the compositions of the present invention at a level at leasl sufficient to solubilize the antiperspirant salt. It is desirable to keep the level of 2 ~ 8 ~ Q,~
WO 91/18587 PCr/- S91/02 monohydric alcohol solvent in the present compositions low to allow for the incorporation of as much emollient materials as possible. This results in a product with improved in-use cha~
teristics. Generally, the solvent is prPs~nt in ~he co~ a;
at a level of from about 30% to about 50%, preferably from about 43~O to about 47~.
Em~llients The~present antiperspirant composition also c3m~i^ i .S e I .n~ ~ .?
amounts of non-volatile ~ollient esters and uel~' l^ ^n~
10 non-vola~ile silicone .~mollien~s. It ,s ~hes~ ;umlpùllc~
primarily responsible for the desirable produc~ aes~,let~c~. ai,o.
in-use characteristics of the ~rese,n. co,mpos~,~ions. Eù, ~am~ia.
these components provide the smooth, clean, dry, non^s~ic'<y -,eel upon application to the s~in. These components are present in the 15 antiperspirant compositions at relatively high levels to maximize these benefits. Generally, these components are present at a total level of from about 20% to about 35%, preferably from about 24X to about 33X. These emollient materials must have a viscosity in the range of from about 0.65 centistokes to about 50 20 centistokes as measured by a Brookfield~ cone and plate viscometer, at ambient temperature (or other suitable methods).
These emollient materials must also be of a certain polarlty to remain stable in the present compositions. i.e., they must have a solubility parameter (units equal (cal/cm3)l/2) in the range of from about 4 to about 10, preferably from about 5 to about 9.
The solub;lity parameter is defined in the Po~ymer Hdndbook 3rd Ed. (John ~iley and Sons, New York), J Brandrup and E.H.
Immergut, Chapter VII, PP. 519-559, as the square root of the cohesive energy density and describes the attractive strength between molecules of the material. Solubility parameters may be determined by measurement, correlations with other physical properties, or indirect measurement. The solubility parameters for the present emollient materials were determined by surface tension measurement as outlined in Vaughan, C.D., J. Soc. Cosmet.
Chem., 36, 319-333, 1985.

2~82~
W O 91/18587 PCT/~S9t/0268/

Part of the emollient ~aterial of the present compositions comprises a non-volatile emollient ester. This material may comprise Cl2-Cls alcohol benzoates; esters, diesters, or tetra-esters of C2-C2~ alcohols and C6-C,6 fatty acids (e.g. diiiopropy~
sebacate, diisopropyl adipate, lauryl lactate, myristyl myristate, and pentaerythrityl tetrapelargonate); and ~ixtures ther~cf, ~h.ch meet the solubility parameter requirement described abo~e. The preferred of these non-volatile emollient materials are esters, diesLers, and tetraes~ers of C~-82o alcohols and C6-~ ;tt acids. Especially preferre~ are isopropyl myristate, i~ODro~y, palmitate, C~2-Cls alcohols ben20ate, and mixtures thereot. Ine most preterred of tnese emollient esters for use herein are C,2-Cls alcohols benzoate.
Generally, from about 5% to about 20/~o, preferably from abôut 9~0 to about 11%, of the present compositions comprise these non-volatile emollient ester materials. The non-~olatiie emollient ester component of the present compositions has a solubility parameter of from about 7 to about 10.
The emollient material of the antiperspirant compositions of the present invention also comprises silicone emollient materials.
Of course the silicone emollient materials used herein must also meet the particular emollient viscosity and solubility parameter requirements as outlined above.
Various types of silicone materials have been disclosed for use in ~arious forms of antiperspirant compositions. For example, U.S. Patent 4,784,844, Thimineur et al., issued November 15, 1988;
U.S. Patent 4,499,069, Krafton, issued February 12, 1985; U.S.
Patent 4,268,499, Keil, issued May 19, 1981; U.S. Patent 4,264,586, Callingham et al., issued April 28, 1981; U.S. Patent 4,053,581, Pader et al., issued October 11, 1977; U.S. Patent 4,065,564, Miles, ~r. et al., issued December 27, 1977; U.S.
Patent 4,073,880, Pader et al., issued February 14, 1978; U.S.
Patent 4,673,570, Soldati, issued June 16, 1987; U.S. Patent 4,559,226, Fogel, issued December 17, 1985; U.S. Patent 4,435,382, Shin et al., issued March 6, 1984; European Patent Office ~ i~ 3 ;~
W O 91/18587 PCT/~IS91/026~

Application 343,843, published November 29, 1989; Great Britain Patent iiipplica~ion 1,535,~22, published December 20, 1978i Great itaill ~d~ pplica~ion 2,0i3,590, published October 24, 1979;
and O;-pallai~ 'ub`i~ an~ ~ppii.a~ion 53-15~,318, published August 31, 1984.
.h s.l~aona ~molliein mîterials cf the prosont compositions ccmoriso ~ Yola~ilo silicone emollient~ having a viscosity of from :~bO~ , `?~ ; t,o ~brllt 10 contisto!~es, and a solubility r~ " ~ silicon~
O ~ Vi 5 '~ I ~)X~ cont~ i n i n~J l^roln aboul ~ o ~bou~ i ii i on a~o-~, meet tlese reyùirements and are use;ui ileroin. ~ ciejcrip~ion o, voiatiie silicones is ;ound in Todd and Bvers~ "Yolatile Silicone Fluids for Cosmeticsn, Cosmetics and Toi1etries, 91:27-32 (1976), incorporated herein by reference. Other volatile silicones useful herein are taught in U.S. Patent 4,874,868, Bolich, Jr., issued October 17, 1989, incorporated by reference herein. A preferred volatile silicone for use in the present compositions, which is covered in that patent, is phenethyl pentamethyl disiloxane.
The present compositions comprise from about 5% to about 25%, preferably from about lOX to about 15%, of these volatile silicone materials. The preferred volati,e silicone emollient materials of the present invention are D4-G5 cyclomethicones, phenethyl penta-methyl disiloxane, and mixtures thereof.
Additionally, the present compositions may comprise a volatile dimethicone fluid emollient material, having a viscosity of less than 1 centistoke, preferably 0.65 centistoke, at a level of from about 2X to about 5~ of the composition.
The silicone emolllent materials of the present compositions also comprise non-volatile silicone emollient materials. Such materials have a viscosity of from about 1 to about 50 centi-stokes, and a solubility parameter of from about 4 to about 9.
The present compositions compnise from about 3X to about 10%, preferably from about 3% to about 5~, of such materials.
Preferably, such materials comprise phenyl dimethicone, phenyl W 0 91/18587 2~ Q 1 ~ PCT/US91/026g7 trimethicone, non-volatile dimethicone fluids having a viscosity of trom abou~ 1 centisto~e to about 10 centistokes, and mixtures thereof.

Because the leYel of emollients is relatively high in the presen~ ,ui~l ant,pers?li^,r' compositions~ formulation of the compositions so that they remain physically and chemically stable o~er ~ e ~ d a b,oa(1 ranga of oby~ical conditions (especially ia`'`i'.'.``~ i~` -~m.bie?t tem e~ e~ -ecui-es incorporation of Ihieie i~lu~ . S a. 2 rim.~. ily respcnsible for providing produo~ ab "i~y. l`,le iui`~C~aii; io1u iliz~ors of the present invention must be so~uble in ;he antiperspirant solvent, must have a low s~in irritation pot~ntial, must be able to solubilize large amounts of oil phase at temperatures ranging from about -20-C to about 60'C, must have an average HLB in the range of from about 8 to about 1q, and must, of course, haYe a low base odor. HLB is fully described, and HLB values for various materials are provided in the publication rhe HL~ System, A Time-SaYing Guide to Emu1sifier Se7ection (published by ICI Americas Inc., Wilmington, DE; 1984~, the disclosure of this publication being incorporated by reference herein.
Silicone-in-water emulsions stabilized by nonionic surfactant emulsifiers having certain HLB values are known, having been disclosed in such references as U.S. Patent 4,874,547, Narula, issued October 1~, 1989; U.S. Patent 4,788,001, Narula, issued NoYember 29, 198~3; and Great Britain Patent Publication 2,155,337, published September 25, 1985.
The present antiperspirant compositions comprise from about lX to about 12%, preferably from about 1% to about 2%, of a surfactant solubilizer.
The solubilizer of the present invention comprises, as a critical component, ethoxylated or propoxylated nonionic surfactant materials, and mixtur=; thereof. More specifically, the solubilizer comprises an agent selected from the group 2 0 ~) h (~
w o 91/18587 PC~/~S9l/026~

consisting of ethoxylated and propoxylated nonionic surfactants having an HLB in the range of from about 5 to abo~t 18, or mixtures thereof; such that the averagP HLB of the solubi',2e, i, from about 8 to about 14. Hence, a single solui~iil i2'`^ .~
may be used which itself has an HLB in the range of from about 8 to about 14. Alternatively, a mixture of materials "ay b~ used the solubilizer herein, each having an ~LB in the range ol 'ro~
about 5 to about 18, such that the average HL3 of Lhe rlii`'~Ura ',~
from about 8 to about 14. Surfactant material~, Qr miYt~:r~
surfactant materials, with n HL~ in this ranget ^r^v~
across a broad temperature range. Most pr~f~r ~/y. h~ e solubili.er materials a.i~ s.~l~ct~d from ~he group coni~i; n~ v ethoxylated or propoxylated fatty acid ethers, ana mixtures thereof, so that the average HLB of the solubilizer is from about 8 to about 14.
Examples of solubilizer materials which meet these requirements and, hence, are useful in the present invention include Oleth-5, Oleth-10, Oleth-20, Laureth-4, Laureth-7, Laureth-10, Laureth-12, Laureth-23, Steareth-2, Steareth-10, Steareth-20, Steareth-21, Ceteareth-10, Ceteareth-20, Ceteth-10, Ceteth-20, and mixtures thereof.
Ethoxylated or propoxylated fatty acid ethers, and mixtures thereof, have been disclosed for use as emulsifiers in antiperspirant compositions. U.S. Patent 4,784,844, ~himineur et al., issued November 15, 1988, discloses silicone-in-~ater emulsions containing highly ethoxylated nonionic emulsifiers such as Ceteth-20. U.S. Patent 4,499,069, Krafton, issued February 12, 1985; U.S. Patent 4,268,499, Keil, issued May 19, 1981; and U.S.
Patent 4,264,586, Callingham et al., issued April 28, 1981; also disclose the use of such materials in antiperspirant compositions.
Highly preferred surfactant solubilizers of the present invention comprise from about 1% to about 2X of materials selected from the group consisting of compounds of the formula:
CH3(CH2)x(OCH2CH2)nOH (A) wherein x is 12, 14, 16, or 18, and n is 10, and mixtures thereor;

2 0 ~
w o gl/18587 PCT/~S91/026 and compounds of the formula:
CH3(cH2)x(ocH2cH2)noH (B) wherein x is 12, 14, 16, or 18, and n is 20, and mixtures thereof;
and mixtures of A and B; such that the average HLB o~ ~he solubilizer is from about 8 to about 14, and wherein if A and B
are both present, they are at a ratio of A to 8 of from a~ou~
to about 1:2.
Especially preferred solubilizérs for use in the present inventi~ll comprise, Steareth-20 alon~, at a level of from ~bout to about 2~; or a combination of Ceteth-10 and Ceteth 2', a~
ratio of about 1:1, and at a totat level of from about 1~ ~o ~bou~
2%.
The compositions of the present invention can also comprise from about 5% to about 8% of other co-solubilizer surfactants.
For example, polypropylene glycol (`'PPG~) ethers of C~-C22 (preferably C1o-C20) fatty alcohols may be included in the present compositions~ Examples of such materials include PPG-2 myristyl ether, PPG-4 lauryl ether, PPG-10 cetyl ether, PPG-3 myristyl ether, PPG-11 stearyl ether, PPG-15 stearyl ether and mixtures thereof. Additional examples are found in C~FA Cosmetic In~redient Dict~onary, Third Edition (Extrin et al., Editors; The Cosmetic, Toiletry and Fragrance Association, Inc., 1982)~ pages 252-260 and 494-500, the disclosures of which are incorporated by reference herein. Preferred co-solubilizers of the present compositions are selected from the group consisting of propylene glycol (n) stearyl ether, where n is on the average from 10-16i and propylene glycol (n) myristyl ether, where n is on the average from 2-10; and mixtures thereof. Most preferred in the present compositions is PPG-3 myristyl ether (HLB about 9.8).
ODtional components The compositions of the present composition may also comprise a number of optional components to provide cosmetic or aesthetic benefits. For example, preservatives, deodorant actives, such as anti-microbials or bacteriocides, perfumes, coloring agents and dyes may be used.

2 ~ ~, 2 (' '~ t, .
W o 91/18587 PCT/~S91/026~

These optional components must be chosen so as not to inter,^ere .~i~h the antip~,spi.ant efficacy and the composition stabili.y. Thase optional components are generally present in the composi ~;Oilà Ol- ~he ~rasen~ inven~ion at a l"v21 0~ frcm about 0.O1~O to about lO~o.
Produc~.j The prosent compositions are proferably in the form of a o~y-yjcC,~c;~ ~On'l?~'OiO~ plimla S)rlY. ~lo~ever. the present j "~,~Q~ " ~ ?;~ ^s~ir~nt ~roduct ~y~ y~e~. ~roduc.â
formula~ed as aeiojolj ~,11 a~jo COIlnpi`lâe a ?ropellant material.
Any or ~h~ c~ nonlv ùi~u L`rO~ an-~à ml he an~toerspirancy art are sui~able~ Produc~s i^ormulated as roll-ons ~ill also comprise a thickening agent to raise the viscosity of the composition.
Suitable thickening agents include carboxymethyl cellulose, clay thickeners, colloidal sil ka, and Microthene~ beads, manufactured by U.S.I. Chemicals, having a mean particle diameter of less than about 20 microns.
Methods of Manufactu.~e The antiperspirant compositions of the present invention may be manufactured using methods known in the art. In making the compositions, the antip~rspirant salt is first solubilized in the monohydric alcohol solvent, and a small amount of water (no more than 5X water, by weight of the antiperspirant composition) to form a clear solution. The remaining components are then added to the composition using conventional formulation methods.
~ethod for Preventing P~erspiration and Malodor The present invention also provides methods for treating or preventing perspiration and malodor associated with human underarm perspiration. These methods comprise applying a safe and effective amount of the liquid antiperspirant compositions of the present invention to the skin in the axillary area of a human.
The term a "safe and effective amount" as used herein, is an amount wnich is erfective in eliminating or substantially reducing the production of perspiration ~hich ultimately generates the W O 91/18587 2 Q 8 2 ~ ~ ~ PCT/~S91/02687 malodors detected throuqh formatton of pungent fatty acids, while being sa;e '~or human uie a~ a reasonable risk/benefit ratio.
Tne iiquid antiperspirant compositions of the present inven~ioll pro~ide exc-l,en; cosme~ic ~,tributes both on application and throughout use. They are non-sticky, non-greasy, anci qu~,c:~ dr;mn~. Th comp~si~lons s~ai.q clothing less than other liquid spr~y-on antiperspir~nt compositions. In addition, the pr ~nt c~osi~?on~ 7 e ~`!" no Wi~it~! c~a~ V res;due on skin upon ~i^J~
Th~ ?X~'1i1p~ ' `n~ w esent invention. It wi71 be ~pprecla~;ei sha- other modirica~ions of the present inven~ion w~ in ;he skili or tnose in the antiperspirant formulation art can be underta~en without departing from the spirit and scope of this invention.
All parts, percentages, and ratios herein are by weight unless otherwise specified.
ExamDle I
The following is a clear, liquid, spray-on antlperspirant composition representative of the present invention.
Component Weiqht %
Aluminum Sesquichlorohydrate 15.00 SD Alcohol 40 46.00 D4 Cyclomethicone lO.00 C 12 - C 1 ~ A~cohols Benzoate1 I0.00 PPG-3 Myristyl Ether 6.50 Phenyl Dimethicone 4.00 Dimethicone Fluid (5 ctsk) 3.50 DR0 ~ater 2.50 Steareth-20 2.00 Perfume 0.50 Total=100.00 Available under the trade name Finsolv TN~ from Finetex, Inc.
The composition is prepared as follows. An aluminum sesquichlorohydrate (ASQCH) premix is prepared by combining the W O 91/18587 2 ~ ~ 2 ~ ~ ~ PCT/~S91/026~, ASQCH, about 2/3 of the ethanol and the DR0 water. The main mix is then prepared by adding to the ASQCH premix the remainiils ethanol, the D4 cyclomethicone, the C12-C1s alcohols benzoate, ~ha PPG-3 myristyl ether, the phenyl dimethicone, ~he ~Jimë-~,iico"e S fluid, the Steareth-20, and the perfume, in that order.
The resulting antiperspirant co~position proYides exc~t 'n antiperspirancy efficacy with good product aesthetics and in-use characteristics. The compositton also remains stable oYer ~ ?
and broad ranges of physical ccnditions. especiall~ amb.e., ~emperatures.
Examol ê I I
Thê following is a clear liquid spray-on dn t i perso i ran composition representative of the present invention.
Component `~eiqht ~l, Aluminum Sesquichlorohydrate Premix 50.00 Ethanol 14.00 Ceteth-10 0.92 Ceteth-20 1.08 PPG-15 Stearyl Ether 4.00 Isopropyl Myristate 10.00 Phenethyl Pentamethyl Disiloxane 6.00 D4 Cyclomethicone 14.00 Total~100.00 Aluminum Sesquichlorohydrate Premix Component ~eight ~, Aluminum Sesquichlorohydrate 30.0 Ethanol 65.0 DR0 Water 5.0 Total-100.0 This composition is prepared as follows. The aluminum sesq,uichlorohydrate (ASQCH) premix is prepared by combining the ASQCH, ethanol and water. The main mix is then prepared by adding to the ASQCH premix the remaining ethanol, the Ceteth-10, the Ceteth-20, the PPG-lS stearyl ether, the isopropyl myristate, the 3;

` W O 91/18587 2 Q .~ 2 ~ 1 ~ Pcr/~lS91/02687 phenethyl pentamethyl disiloxane, and the D4 cyclomethicone, in that order.
The resulting antiperspirant composition provides excellent antiperspirancy efficacy with good product aesthetics and in-use characteristics. The composition also remains stable over time and broad ranses of physical conditions, especially ambient temperatures.
Example IIl The follo~ing is a clear liquid spray-on antiperspira,t 10 compositio,~ ,epresentativ~ of the prPsent i~venticn.
Component ~eiqht ,c Aluminum Sesquichlorohydrate Premix 50.00 Ethanol 13 50 Ceteth-10 0.92 Ceteth-20 1.08 PPG-3 Myristyl Ether 6.50 C12-C1s Alcohols Benzoate1 10.00 Perfume 0.40 Phenyl Dimethicone 4.00 Dimethicone Fluid (5 cstk) 3.50 D4 Cyclomethicone 10.10 Total-100.00 Available under the trade name Finsolv TN from Finetex, Inc.
Aluminum Sesquichlorohydrate Premix Compo~n~ ~eiqht %
Aluminum Sesquichlorohydrate 30.0 Ethanol 65.0 DR0 Water 5.0 Total-100.0 This composition is prepared as follows. The aluminum sesquichlorohydrate (ASQCH) premix is prepared by combining the ASQCH, ethanol and water. The main mix is then prepared by adding to the ASQCH premix the remaining ethanol, the Ceteth-10, the Ceteth-20, the PPG-3 myristyl ether, the C,2-C1s alcohols W 0 91/18587 2 ~ CT/US91tO26 benzoate, the perfume, the phenyl dimethicone, the dimethicone fluid, and th~ D4 cyclomet.hicor.e, in that cr~er.
The resulti.lg antip~rspira,l~ composition provides excellent anti~:~r, mrailey a.^~!c~c~ c~' pn^l~c` ~ s~het,cs and in-us~
characteristics. The composition also re~ains stable over time and ~roa~i ranaes of n~-s,~ l cond,tiols~ especially ambient temperatures~

T~ -C~ ?~ 9 is - ~ . d `~ p '`." ~ i ?^ ~ ~ t composition Comncn~n~ l~eiaht Alu,~ u~ "~ ",~ 50 00 Ethanol 13.50 Steareth-20 1.00 PPG-3 Myristyl Ether 6.50 C12-C~5 Alcohols Benzoate 10.00 Perfume 0.40 Phenyl Dimethicone 4.00 Dimethicone Fluid (5 cstk) 3.50 D4 Cyclomethicone 11.10 Total=100.00 Aluminum Sesquichlorohydrat2 Premix ComDonent Weiqht ,0 Aluminum Sesquichlorohydrate 30.0 thanol 65.0 DRO Water S.O
Total-100.0 This composition is prepared as follows. The aluminum sesquichlorohydrate (ASQCH) premix is prepared by combining the ASQCH, ethanol and water. The main mix is then prepared by adding to the ASQCH premix the remaining ethanol, the Steareth-20, the PPG-3 myristyl ether, the Cl2-Cls alcohols benzoate, the perfume, the phenyl dimethicone, the dimethicone fluid, and the D4 cyclomethicone, in that order.

WO 91/18587 2 0 3 2 3 ~ 3 PCl`/US91/0268/

The resulting antiperspirant composition provides excellent antiperspirancy ef,~icacy with gcod product aesthetics and in-use characteri~tics. Tne co",posi.ivn also remains stable over time and broad .~an~ei ~ n~i;.aa oo,l~.'.vns, especially ambient temperatur~s.

The ,~ollowing is a liquid antiperspirant composition represen~ti~e o~ ~h~ i^?~ne ,n~ien~ion.
Cc~ponent '~ ht 7 Aluminu"l svu`,e;ll~n~ d^s~ m.; 50.00 Ethanol 13.00 Ceteth-10 0.9L
Ceteth-20 1.08 Benzalkonium Chloride1 0.25 PPG-3 Myristyl Ether 6.50 C 12 -C 1 s Alcohols Benzoate 10.00 Phenethyl Pentamethyl Disiloxane 6.00 D4 Cyclomethicone 12.25 Total-100.00 1Antimicrobial, available from Lonza, Inc., under the trade name - Barquat MB-802 Aluminum Sesquichlorohydr2te Premix Component Weiqht X
Aluminum Sesquichlorohydrate 30.0 Ethanol 65.0 DR0 ~ater 5 0 Total~100.0 This composition is prepared as follows. The aluminum sesquichlorohydrate (ASQCH) premix is prepared by combining the ASQCH, ethanol and water. The main mix is then prepared by adding to the ASQCH premix the remaining ethanol, the Ceteth-10, the Ceteth-20, the Barquat MB-80~, the PPG-3 myristyl ether, the C12-C1s alcohols ben~oate, the phenethyl pentamethyl disiloxane, and the D4 cyclomethicone, in that order.

W O 91/18587 2 ~ ~ 2 o 1 3 PCT/~ISgl/02fi.

The resulting antiperspirant composition provides excellent antiperspirancy efficacy with good product aesthetics and in-use characteristics. The composition also remains stable over ti~"e and broad ranges of physical conditions, especially a;.`~
S temperatures.
~xamcle Yt The following is a liquid antiperspirant composition represen~ative of the present invention.
Component ~e;qh, Aluminum SesquichlorohydratP Premix S~.~0 Ethanol 1~ 50 Stear~th-20 2.C0 PPG-3 Myristyl Ether 6.~0 C, 2 -Cl 5 Alcohols Benzoate 11. 00 Fragrance - 0-50 Dimethicone Fluid (5 centistokes) 5.00 D4 Cyclomethicone 10.50 Total-100.00 Aluminum Sesquichlorohydrate Premix ComDonent Weiqht X
Aluminum Sesquichlorohydrate 30.0 Ethanol 65.0 DR0 Water 5 0 Total-100.0 This composition is prepared as follows. The ASQCH premix is prepared by combining the ASQCH, ethanol and water. The main mix is then prepared by adding to the ASQCH premix the remaining ethanol, the Steareth-20, the PPG-3 myristyl ether, the C,2-Cls alcohols benzoate, the fragrance, dimethicone fluid, and the D4 cyclomethicone, in that order.
The resulting antiperspirant composition provides excellent antiperspirancy efficacy with good product aesthetics and in-use characteristics. The composition also remains stable over time and broad ranges of physical conditions, especially ambient temperatures.

` ~ w O 91/18587 ~ ~ 8 ~ PCT/US91/02687 ExamDle VII
The following is a liquid antiperspirant composition representative of the present invention.
Component '~eiaht Aluminum Sesquichlorohydrate Premix 50.00 Ethanol 13.50 Steareth-20 2.00 PPG-3 Myristyl Ether ~ 50 C12-C15 Alcohols Benzoate 11.00 Fragrance il jO
Dimethicone Fluid (S centistokes) 4.00 D4 Cyclomethicone 12.S0 Total~100.0 Aluminum Sesquichlorohydrate Premix ComDonent Weiqht ~O
Aluminum Sesquichlorohydrate 30.0 Ethanol 65.0 DR0 Water 5.0 Total~100.0 Th;s composition is prepared as follows. The ASQCH premix is prepared by combining the ASQCH, ethanol and water. The main mix is then prepared by adding to the ASQCH premi~ the remaining ethanol, the Steareth-20, the PPG-3 myristyl ether, the C~2-C~s alcohols benzoate, the fragrance, the dimethicone fluid, and the D4 cyclomethicone, in that order.
The resulting antiperspirant composition provides excellent antiperspirancy efficacy with good product aesthetics and in-use characteristics. The composition also remains stable over time and broad ranges of physical conditions, especially ambient temperatures.

WHAT IS CLAIMED IS:

Claims (21)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:

1. A clear, sprayable, liquid antiperspirant solution, having a viscosity of less than about 15 centistokes, comprising:
a. from about 10% to about 25% of a monohydric alcohol-sol-uble antiperspirant salt;
b. from about 3% to about 10% of a non-volatile silicone emollient having a viscosity of from about 1 centistoke from about 4 to about 9;
c. from about 5% to about 25% of a volatile silicone emollient having a viscosity of from about 0.65 centistokes to about 10 centistokes and a solubility parameter of from about 4 to about 9;
d. from about 5% to about 20% of a non-volatile emollient ester having a solubility parameter of from about 7 to about 10;
e. from about 1% to about 12% of a solubilizer comprising an agent selected from the group consisting of ethoxylated and propoxylated nonionic surfactants, having an HLB of from about 5 to about 18, and mixtures thereof;
such that the average HLB of the solubilizer is from about 8 to about 14; and f. from about 30% to about 50% of a monohydric alcohol solvent;
wherein the antiperspirant composition comprises no more than about 5% water.

2. The composition of Claim 1 wherein the monohydric alcohol-soluble antiperspirant salt is selected from the group consisting of aluminum chlorohydrex, aluminum chlorohydrex PEG, aluminum chlorohydrex PG, aluminum sesquichlorohydrate, aluminum sesquichlorohydrex PEG, aluminum sesquichlorohydrex PG, and mixtures thereof.

3. The composition of Claim 2 wherein the monohydric alcohol-soluble antiperspirant salt is present in the composition at a level of from about 14% to about 16%.

4. The composition of Claim 3 wherein the monohydric alcohol-soluble antiperspirant salt is an ethanol-soluble aluminum sesquichlorohydrate antiperspirant salt.

5. The composition of Claim 1 wherein the volatile silicone emollient is present in the composition at a level of from about 10% to about 15%.

6. the composition of Claim 5 wherein the volatile silicone emollient is selected from the group consisting of D4-D5 cyclomethicones, phenethyl pentamethyl disiloxane, dimethicone fluids having viscosities of less than 1 centistoke, and mixtures.
thereof.

7. The composition of Claim 1 wherein from about 2% to about 5% of the volatile silicone emollient comprises a volatile dimethicone fluid having a viscosity of about 0.65 centistokes.

8. The composition of Claim 1 wherein the non-volatile silicone emollient is present in the composition at a level of from about 3% to about 5%.

9. The composition of Claim 8 wherein the non-volatile silicone emollient is selected from the group consisting of phenyl dimethicone, phenyl trimethicone, dimethicone fluids having viscosities of from about 1 centistoke to about 10 centistokes, and mixtures thereof.

10. The composition of Claim 1 wherein the non-volatile emollient ester is present in the composition at a level of from about 9% to about 11%.

11. The composition of Claim 10 wherein the non-volatile emollient ester is selected from the group consisting of C12-C15 alcohols benzoate, isopropyl myristate, isopropyl palmitate, and mixtures thereof.

12. The composition of Claim 1 wherein the solubilizer comprises from about 1% to about 2% of the composition.

13. The composition of Claim 12 wherein the solubilizer is selected from ethoxylated and propoxylated fatty acid ethers, and mixtures thereof.

14. The composition of Claim 13 wherein the solubilizer is selected from the group consisting of:
A. ethoxylated nonionic surfactant materials selected from the group consisting of compounds of the formula:
CH3(CH2)x(OCH2CH2)nOH
wherein x is 12, 14, 16, or 18, and n is 10, and mixtures thereof;
B. ethoxylated nonionic surfactant materials selected from the group consisting of compounds of the formula:
CH3(CH2)X(OCH2CH2)nOH
wherein x is 12, 14, 15, or 18, and n is 20, and mixtures thereof;
and mixtures of A and B; wherein if A and B are both present they are at a ratio of A to B of from about 2:1 to about 1:2.

15. The composition of Claim 14 wherein the solubilizer comprises a combination of Ceteth-10 and Ceteth-20 at a ratio of about 1:1.

16. The composition of Claim 14 wherein the solubilizer comprises Steareth-20.

17. The composition of Claim 14 which additionally comprises from about 5% to about 8% of a co-solubilizer which is selected from the group consisting of propylene glycol (n) stearyl ether, where n is on the average from 10-16; and propylene glycol (n) myristyl ether where n is on the average from 2-10; and mixtures thereof.

18. The composition of Claim 17 wherein the co-solubilizer comprises PPG-3 myristyl ether.

19. The composition of Claim 1 wherein the monohydric alcohol solvent comprises from about 43% to about 47% of the composition.

20. the composition of Claim 19 wherein the monohydric alcohol solvent comprises ethanol.

21. A clear, sprayable, liquid antiperspirant solution, having a viscosity of less than about 15 centistokes, comprising:
a. from about 14% to about 16% of an ethanol-soluble sesquichlorohydrate antiperspirant salt;
b. from about 3% to about 5% of a non-volatile silicone emollient selected from the group consisting of phenyl dimethicone, phenyl trimethicone, dimethicone fluids having viscosities of from about 1 centistoke to about 10 centistokes, and mixtures thereof;
c. from about 10% to about 15% of a volatile silicone emollient selected from the group consisting of D4-D5 cyclomethicones, phenethyl pentamethyl disiloxane, dimethicone fluids having viscosities of less than 1 centistoke, and mixtures thereof;
d. from about 9% to about 11% of a non-volatile emollient selected from the group consisting of C12-C15 alcohols benzoate, isopropyl myristate, isopropyl palmitate, and mixtures thereof;

e. from about 1% to about 2% of a solubilizer which is selected from the group consisting of:
A. ethoxylated nonionic surfactant materials selected from the group consisting of compounds of the formula:
CH3(CH2)x(OCH2CH2)nOH
wherein x is 12, 14, 16, or 18, and n is 10, and mixtures thereof;
B. ethoxylated nonionic surfactant materials selected from the group consisting of compounds of the formula:
CH3(CH2)x(OCH2CH2)nOH
wherein x is 12, 14, 16, or 18, and n is 20, and mixtures thereof;
and mixtures of A and B; such that the average HLB of the solubilizer is from about 8 to about 14, and wherein if A and B are both present they are at a ratio of A to B of from about 2:1 to about 1:2;
f. from about 5% to about 8% of a co-solubilizer which is selected from the group consisting of propylene glycol (n) stearyl ether, where n is on the average from 10-16;
and propylene glycol (n) myristyl ether, where n is on the average from 2-10; and mixtures thereof; and 9. from about 43% to about 47% of ethanol;
wherein the antiperspirant composition comprises no more than about 2.5% water.

22. A method for preventing and controlling perspiration wetness in humans comprising application to the axillary area of an effective amount of the antiperspirant composition according to Claim 1.

23. A method for preventing and controlling perspiration wetness in humans comprising application to the axillary area of an effective amount of the antiperspirant composition according to

Claim 21.