Abstract: A composition of zirconyl hydroxy chloride and aluminum chlorhydroxide in stable solid form having improved antiperspirant efficacy when dissolved in water is made by heating a 2-20% by weight aqueous solution containing at least the aluminum chlorhydroxide component of the composition at a temperature of at least 50.degree. C. until the ratio of the height of peak 4 at Kd=0.7 to that of peak 3 at Kd=0.5 as measured by gel permeation chromatography on cross-linked dextran is at least 2:1, then subjecting the solution to rapid drying to solid form.

Abstract: The present invention comprises a soap-free self-foaming shave gel composition which maintains superior performance attributes while avoiding the harshness and drying associated with soap-based shave preparations. The shave gel composition of the present invention comprises water, a water-soluble sarcosinate salt, a volatile self-foaming agent, and a non-volatile paraffinic hydrocarbon fluid.

Abstract: The present invention relates to a method of improving shaving comfort by softening the hair to be shaved so as to reduce the cutting force required to cut it. The novel method comprises carrying out the following sequential steps:(a) contacting an area of hair to be shaved with a reducing agent that breaks disulfide linkages in hair;(b) contacting the area of hair treated in step (a) with a humectant and allowing it to dry or partially dry;(c) contacting the area treated in step (b) with water to hydrate the hair; and(d) shaving the hydrated hair of step (c).

Abstract: A composition of zirconyl hydroxy chloride and aluminum chlorhydroxide in stable solid form having improved antiperspirant efficacy when dissolved in water is made by heating a 2-20% by weight aqueous solution containing at least the aluminum chlorhydroxide component of the composition at a temperature of at least 50.degree. C. until the ratio of the height of peak 4 at Kd=0.7 to that of peak 3 at Kd=0.5 as measured by gel permeation chromatography on cross-linked dextran is at least 2:1, then subjecting the solution to rapid drying to solid form.

Abstract: The present invention is directed to a shaving system of the wet shave type comprising a blade member (one or more) and a structure which supports or holds the blade member and which has an external skin engaging portion in proximity to the blade member.The skin engaging portion includes an improved shaving aid composite which comprises a matrix of a water-insoluble polymer, an effective amount of a skin lubricating water-soluble polymer dispersed within the matrix, and a compatibilizer material that improves the compatibility of the water-soluble polymer with the water-insoluble polymer so as to reduce the domain size of the water-soluble polymer within the matrix. The improved shaving aid composite provides a greater and more sustained release of the water-soluble polymer during use while maintaining good mechanical integrity. The preferred shaving composite comprises about 15 to 40% polystyrene, about 40 to 80% polyethylene oxide, and about 0.

Abstract: An in vitro chamber for sustaining organ tissue samples during optical study with, for example a microscope, has a tray assembly with a plurality of wells, each of which may be provided with a clampable sleeve or a vertically adjustable thimble such that an associated organ tissue sample contacts a nutrient medium contained in a reservoir. The tray assembly rests upon a heater assembly having a water-jet-driven magnetic stirrer magnetically coupled with a driven magnetic stirrer in the nutrient reservoir to maintain a substantially uniform temperature in both the heater assembly and the nutrient reservoir. A thermally insulating collar surrounding the tray assembly and the heater assembly maintains relative positions thereof. A transparent cover encloses the top of the tray assembly so that air borne exchanges with the wells and nutrient splashes are substantially contained.

Abstract: An anhydrous antiperspirant product includes an anhydrous carrier vehicle; an antiperspirant active salt suspended in particle form in the vehicle; and a nonvolatile water soluble liquid masking agent that is interactive with the antiperspirant active salt to essentially eliminate discernible whitening without substantially inhibiting the antiperspirant activity of the salt when the product is applied to the skin.

Abstract: A shaving unit (10) comprises at least one blade (13) and a blade support of moulded polymeric material which provides skin-engaging guard (11) and cap (12) surfaces, and the cap portion (12) and/or the guard portion (11) of the blade support is formed of at least one lubricious polymeric material which is more water-soluble under the conditions present during shaving than it is under other conditions, or of a mixture of such a lubricious polymeric material with one or more other materials.

Abstract: The present invention provides a process for making a solid antiperspirant stick comprising a particulate aluminum antiperspirant salt suspended in an anhydrous carrier vehicle, wherein said carrier vehicle comprises a high melting component which melts at 70.degree. C. or higher. This process includes heating the carrier vehicle in a closed mixing vessel to a temperature in excess of 70.degree. C. preferably in excess of 75.degree. C., to melt the high melting component, adding the antiperspirant salt to the carrier vehicle, and cooling the carrier vehicle to form a solid antiperspirant stick. The improvement of the present invention comprises cooling the carrier vehicle below 70.degree. C., preferably to about 65.degree. C. or less, but above the solidification point prior to adding the antiperspirant salt and maintaining the carrier vehicle below 70.degree. C., preferably at about 65.degree. C.

Abstract: A solid deodorant stick product comprises from about sixty-five percent to about eighty-five percent of an aliphatic polyhydric alcohol, from about three percent to about twelve percent of a gel forming agent; and from about 0.05 to about 0.2 percent usnic acid; the composition having a chromatogram made by high pressure liquid chromatography with an usnic acid peak and a degradation constituent peak, the area of the usnic acid peak being at least ten times the area of the degradation constituent peak (FIG. 2).

Abstract: An optically clear liquid antiperspirant product in the form of a stable water-in-oil emulsion with a viscosity of less than about 1000 cps at about room temperature includes an aqueous phase with an antiperspirant active ingredient in solution therein, an oil phase making up at least about thirty percent of the product, and a stabilizing agent that has a substantial solubility in each of the oil and aqueous phases. The emulsion has long term stability over temperature ranges from about 0.degree. to 45.degree. C. The product preferably is dispensed as a thin film from a roll-on type dispenser.

Abstract: A substantially clear, anhydrous suspension-type antiperspirant product includes an effective amount of an active antiperspirant component in particulate form suspended in an anhydrous vehicle such that there is no significant dissolution of the active antiperspirant ingredient in the vehicle, and the refractive indices of the active antiperspirant component and the vehicle are matched.