Abstract: A solid antiperspirant stick composition in the form of a water-in-oil emulsion comprising (i) an aqueous phase comprising dissolved aluminium sesquichlorohydrate antiperspirant active; (ii) an oil phase comprising a solidifying agent; (iii) an emulsifier and (iv) at least 5% by weight of a polyol selected from glycerol, propylene glycol and/or PEG oligomers having a molecular weight of from 180 to 420.

Abstract: The invention relates to a deodorant composition in the form of a solid stick comprising: a) from 24 to 55 wt. % of dipropylene glycol; b) from 4 to 8 wt. % of propylene glycol; c) from 10 to 20 wt. % of glycerol; d) from 20 to 40 wt. % of water; and, e) from 0.5 to 15 wt. % of a structurant; wherein, the weight ratio of dipropylene glycol (a), to propylene glycol (b) is greater than 5:1; and, wherein, the weight ratio of dipropylene glycol (a), to glycerol (c) is from 1:1 to 3:1.

Abstract: The invention relates to a deodorant composition in the form of a solid stick comprising: a) from 24 to 55 wt. % of dipropylene glycol; b) from 4 to 8 wt. % of propylene glycol; c) from 10 to 20 wt. % of glycerol; d) from 20 to 40 wt. % of water; and, e) from 0.5 to 15 wt. % of a structurant; wherein, the weight ratio of dipropylene glycol (a), to propylene glycol (b) is greater than 5:1; and, wherein, the weight ratio of dipropylene glycol (a), to glycerol (c) is from 1:1 to 3:1.

Abstract: Antiperspirant stick compositions in the form of a water-in-oil emulsion comprising a dispersed aqueous solution of an astringent antiperspirant salt and a continuous oil phase solidified by a hydrocarbon wax comprising an intermediate molecular weight polyethylene wax, optionally together with a further hydrocarbon wax, exhibit desirable aesthetic properties, including low drag/good glide and low visible deposits at a preferred stick hardness.

Abstract: Anhydrous cosmetic stick compositions containing a continuous phase of a water-immiscible cosmetic oil structured by a fibre-forming amido structurant and containing a suspended particulate antiperspirant or deodorant can suffer from either somewhat poor physical stability when formed, or preparative difficulties using conventional processes for making stick compositions or opaqueness. The problem can be ameliorated or overcome by the use of a combination of amido structurants comprising (i) an N-acylaminoacid amide in which the N-acyl substituent has the formula —CO—RX in which RX represents a branched C6 to C11 alkyl group in combination with a further amido structurant (ii), selected from (iia) N-acylaminoacid amides other than (i), (iib) cyclodipeptides and (iic) a 1,2-di amido-substituted cyclohexane.

Abstract: Many cosmetic stick compositions containing a continuous phase of a water-immiscible cosmetic oil structured by a fibre-forming amido structurant and an active cosmetic ingredient either exhibit poor physical stability when formed, or cannot be made readily using conventional processes for making stick compositions. The problem can be ameliorated or overcome by the use of a combination of amido structurants comprising in class (i) an N-acylaminoacid amide in which the N-acyl substituent has the formula —CO—RX in which RX represents a branched C6 to C11 alkyl group in combination with a further amido structurant, (class (ii), including a polyamido-substituted cyclohexane, an amido derivative of di or tricarboxylic acids or an hydroxystearamide and particularly employing an N-acylaminoacid amide in which the N-acyl substituent contains a linear alkyl group, or a cyclodipeptide.

Abstract: Cosmetic compositions in the form of soft solids having in combination an improved resistance to syneresis and retained efficacy and which contain a particulate antiperspirant suspended in a water-immiscible carrier liquid structured by a structurant system are obtainable by employing as carrier liquid a mixture of a hydrocarbon oil and an aromatic ester oil in a weight ratio of from 1:2 to 15:1 and as structurant system from 5.5 to 20% in total of a di or triblock alkylene/arylene block copolymer and an organic wax in a weight ratio to each other of from 5:1 to 30:1.

Abstract: Anhydrous cosmetic stick compositions containing a continuous phase of a water-immiscible cosmetic oil structured by a fibre-forming amido structurant and containing a suspended particulate antiperspirant or deodorant can suffer from either somewhat poor physical stability when formed, or preparative difficulties using conventional processes for making stick compositions or opaqueness. The problem can be ameliorated or overcome by the use of a combination of amido structurants comprising (i) an N-acylaminoacid amide in which the N-acyl substituent has the formula —CO—RX in which RX represents a branched C6 to C11 alkyl group in combination with a further amido structurant (ii), selected from (iia) N-acylaminoacid amides other than (i), (iib) cyclodipeptides and (iic) a 1,2-di amido-substituted cyclohexane.

Abstract: Many cosmetic stick compositions containing a continuous phase of a water-immiscible cosmetic oil structured by a fibre-forming amido structurant and an active cosmetic ingredient either exhibit poor physical stability when formed, or cannot be made readily using conventional processes for making stick compositions. The problem can be ameliorated or overcome by the use of a combination of amido structurants comprising in class (i) an N-acylaminoacid amide in which the N-acyl substituent has the formula —CO—RX in which RX represents a branched C6 to C11 alkyl group in combination with a further amido structurant, (class (ii), including a polyamido-substituted cyclohexane, an amido derivative of di or tricarboxylic acids or an hydroxystearamide and particularly employing an N-acylaminoacid amide in which the N-acyl substituent contains a linear alkyl group, or a cyclodipeptide.

Abstract: The sensory attributes and/or visibility of deposits of wax-structured antiperspirant or deodorant sticks in the form of emulsions can vary significantly depending on the formulation employed. A particularly beneficial balance of attributes is obtained in emulsion sticks by employing a composition comprising a continuous phase which comprises from 10 to 35% volatile silicone oil, and from 5 to 15% non-volatile hydrophobic oil, from 40 to 75% of ta disperse aqueous phase which contains from 1 to 35% of an antiperspirant or deodorant active, from 7 to 25% of a wax structurant, from 0.1 to 10% of an emulsifier, and preferably contains up to 5% insoluble particulate materials, %s being by weight based on the composition.

Abstract: Antiperspirant compositions herein comprise an antiperspirant active, together with a carrier and a structurant for the carrier which comprises an organic wax having a melting point of from 40 to 90° C. of which at least 60% of the weight of the wax is provided by at least one aliphatic ester satisfying the formula: CH3—(CH2)n—CO—(CH2)m—CH3 in which n is from 9 to 39 and m is from 0 to 35 to form a solid or a soft solid. The compositions can be anhydrous, in the form of a suspension of antiperspirant active, or can comprise aqueous emulsions. The formulations structured by the selected waxes provide lower visible deposits on topical application compared with conventional wax-structured formulations and the waxes are effective at structuring/thickening at a proportion below that in conventional wax-structured formulations.

Abstract: The sensory attributes and/or visibility of deposits of wax-structured antiperspirant or deodorant sticks in the form of emulsions can vary significantly depending on the formulation employed.