Abstract: A method of providing a salt having antiperspirant activity and having an empirical formula Al2(OH)6-aXa.YH2O wherein X is one of Cl, Br or I, Y ranges from 1.5 to 2.5, and a ranges from 0.8 to 1.33 includes heating an aqueous solution comprised of one of aluminum halide or HX, and aluminum metal for a time period sufficient for the aluminium metal to dissolve and provide a solution containing dissolved aluminum; and subsequently aging the solution containing dissolved aluminium for a time period ranging from 50 minutes to 21 days at a temperature ranging from 80 to 130° C. to provide a resulting solution having a ratio of Al to X ranging from 1.5:1 to 2.0:1 and having an aluminum concentration ranging from 0.5 to 3.8 wt %.

Abstract: An antiperspirant suspension which is finely divided, which is contained in a non-aqueous phase, and which has improved efficacy for perspiration reduction when used on human skin, includes at least one basic aluminum-zirconium-halogenohydrate complex as active ingredient in which at least 60% of the zirconium content can be directly titrated after dissolving in 0.1 n HCl with EDTA at a pH of 0.8, wherein the active ingredient optionally contains an amino acid. A process for the synthesis of the antiperspirant suspension includes mixing an aluminum salt which is effective as an antiperspirant with a zirconium salt which is effective as an antiperspirant, optionally in the presence of an amino acid, in a non-aqueous oil phase in the absence of water to provide a mixture; and grinding the mixture.

Abstract: A process for synthesis of finely divided antiperspirant suspensions includes providing an antiperspirant salt consisting essentially of an Al salt which is effective as an antiperspirant and which is described by an empirical formula as follows: Al(OH)(3−b)XbzH2O where b=0.4 to 3, z<4, and X=halogen; mixing the Al salt into a non-aqueous oil phase to provide a mixture; and subsequently grinding the mixture with a suitable milling device at a temperature below 80° C. to provide a suspension having a preselected fineness. A perspiration-inhibiting cosmetic preparation includes, as active ingredient, the antiperspirant suspension described above.

Abstract: Aluminum magnesium hydroxy compounds of the formulaAl.sub.x Mg.sub.y (OH).sub.35-z R.sub.z.nH.sub.2 Oin which R represents an anion of at least one monocarboxylic acid having from 2 to 22 carbon atoms, and n, x, y and z are defined by: ##EQU1## are described.

Abstract: A gel composition useful as a thickening agent, for example in cosmetic compositions, containing an aluminum-magnesium-hydroxy compound of the general formulaAl.sub.x Mg.sub.y (OH).sub.35-z R.sub.z.nH.sub.2 Owhere R represents the anion of a monocarboxylic acid having 2 to 22 carbon atoms and n, x, y and z are defined by0.ltoreq.n.ltoreq.103.ltoreq.x.ltoreq.94.ltoreq.y.ltoreq.133.ltoreq.z.ltoreq.5and3x+2y=35;and also containing an organic, lipophilic compound which is liquid at 20.degree. C.