Method of enhanced moisture or reduced drying using wet-skin treatment compositions

Claim 1

A method of retaining moisture feel after treatment with a rinse-off, wet treatment composition which method comprises I) applying to wet skin during a bathing process a treatment composition comprising: (a) an aqueous phase comprising water and a dispersion stabilizer selected from the group consisting of organic, inorganic and polymeric stabilizers and capable of providing physical stability of a structured oil phase (b) at 40° C. for over 4 weeks; (b) a structured oil phase comprising: i) a skin compatible oil which is liquid at a temperature below about 35° C., ii) 1-75% of S structurant that forms a stable 3-dimensional network within said skin compatible oil comprising finely divided solid particles having a particle size below about 25 microns at a temperature below 35° C. and II) rinsing off said composition subsequent to treatment; wherein said structured oil phase comprising bi) and bii) has a viscosity of 100 to 5000 poise measured at 1 sec-1 at 25° C.; wherein said oil phase is dispersed in said aqueous phase to form an oil-in-water emulsion having a weight average droplet size of 1-500 microns; wherein said structured oil phase is retained on the skin as measured by a skin retention efficiency index of at least 0.15 as determined in the in-vitro skin retention test; wherein said oil-in-water emulsion has a low irritation potential as measured by zein solubility below 0.3 as measured by the zein solubility test; and wherein said emulsion is low foaming as measured by a foam volume below 5 cc as measured in the solution shake test; and wherein retention of moisture is still measurable at least 30 minutes after said bathing process treatment.

Claim 2

A method of retaining moisture feel after treatment with a rinse-off, wet treatment composition which method comprises I) applying to wet skin during a bathing process a treatment composition comprising: (a) an aqueous phase comprising water and a dispersion stabilizer selected from the group consisting of organic, inorganic and polymeric stabilizers and capable of providing physical stability of a structured oil phase (b) at 40° C. for over 4 weeks; (b) a structured oil phase comprising: i) a skin compatible oil which is liquid at a temperature below about 35° C., ii) 1-75% of S structurant that forms a stable 3-dimensional network within said skin compatible oil comprising finely divided solid particles having a particle size below about 25 microns at a temperature below 35° C. and II) rinsing off said composition subsequent to treatment; wherein said structured oil phase comprising bi) and bii) has a viscosity of 100 to 5000 poise measured at 1 sec-1 at 25° C.; wherein said oil phase is dispersed in said aqueous phase to form an oil-in-water emulsion having a weight average droplet size of 1-500 microns; wherein said structured oil phase is retained on the skin as measured by a skin retention efficiency index of at least 0.15 as determined in the in-vitro skin retention test; wherein said oil-in-water emulsion has a low irritation potential as measured by zein solubility below 0.3 as measured by the zein solubility test; and wherein said emulsion is low foaming as measured by a foam volume below 5 cc as measured in the solution shake test; and wherein retention of moisture is still measurable at least 30 minutes after said bathing process treatment.

Claim 5

A method for reducing skin dryness after treatment with a rinse-off, wet treatment composition which method comprises I) applying to wet skin during a bathing process a treatment composition comprising: a) an aqueous phase comprising water and a dispersion stabilizer selected from the group consisting of organic, inorganic end polymeric stabilizers and capable of providing physical stability of a structured oil phase (b) at 40° C. for over four weeks; b) a structured oil phase comprising: i) a skin compatible oil which is liquid at temperature below about 35° C., ii) 1-75% of a structurant that forms a stable 3-dimensional network within said skin compatible oil comprising finely divided solid particles having a particle size below about 25 microns at a temperature below 35° C., and II) rinsing off said composition subsequent to treatment; wherein said structured oil phase comprising bi) and bii) has a viscosity of 100 to 5000 poise measured at 1 sec-1 at 25° C.; wherein said oil phase is dispersed in said aqueous phase to form an oil-in-water emulsion having a weight average droplet size of 1-500 microns; wherein said structured oil phase is retained on the skin as measured by a skin retention efficiency index of at least 0.15 as determined in the in-vitro skin retention test; wherein said oil-in-water emulsion has a low irritation potential as measured by zein solubility below 0.3 as measured by the zein solubility test; and wherein said emulsion is low foaming as measured by a foam volume below 5 cc as measured in the solution shake test; and wherein reduction in skin dryness is still measurable at least 30 minutes after said treatment.

Claim 6

A method for reducing skin dryness after treatment with a rinse-off, wet treatment composition which method comprises I) applying to wet skin during a bathing process a treatment composition comprising: a) an aqueous phase comprising water and a dispersion stabilizer selected from the group consisting of organic, inorganic end polymeric stabilizers and capable of providing physical stability of a structured oil phase (b) at 40° C. for over four weeks; b) a structured oil phase comprising: i) a skin compatible oil which is liquid at temperature below about 35° C., ii) 1-75% of a structurant that forms a stable 3-dimensional network within said skin compatible oil comprising finely divided solid particles having a particle size below about 25 microns at a temperature below 35° C., and II) rinsing off said composition subsequent to treatment; wherein said structured oil phase comprising bi) and bii) has a viscosity of 100 to 5000 poise measured at 1 sec-1 at 25° C.; wherein said oil phase is dispersed in said aqueous phase to form an oil-in-water emulsion having a weight average droplet size of 1-500 microns; wherein said structured oil phase is retained on the skin as measured by a skin retention efficiency index of at least 0.15 as determined in the in-vitro skin retention test; wherein said oil-in-water emulsion has a low irritation potential as measured by zein solubility below 0.3 as measured by the zein solubility test; and wherein said emulsion is low foaming as measured by a foam volume below 5 cc as measured in the solution shake test; and wherein reduction in skin dryness is still measurable at least 30 minutes after said treatment.