Coupling Emulsions for Use With Ultrasound Devices
AssigneeAvon Products, Inc.
InventorsDaniel Thorn-Leeson, Bing C. Mei, Mark S. Garrison, Lisa Lamberty, Clifford A. Milow
Life of this patent
Estimating the term…
Abstract
Methods and cosmetic coupling compositions are provided that can be effectively used in conjunction with an ultrasound or similar device. The compositions and methods allow extended manipulation on the skin and heating without breaking down, pilling or balling and while maintaining a pleasant cosmetic feel and leaving skin feeling soft.
Claims22
1-34. (canceled)
A skin treatment system comprising:
- (i) a hand-held device having a surface configured to be brought into contact with the skin for transmitting energy to the skin;
- (ii) a coupling emulsion for providing a lubricious surface between said device surface and said skin;
- said coupling emulsion comprising an aqueous phase, an oil phase, and an emulsifier for stabilizing said emulsion;
- wherein, when the emulsion is stressed, said coupling emulsion has a rheology:
- characterized by a yield stress value (a) of less than 300 Pa, and/or (b) that does not increase by more than 10%.
The skin treatment system according to claim 1, wherein the rheology is Characterized after evaporation of the volatile solvents from the coupling emulsion.
A kit comprising:
- (i) a coupling emulsion for providing a lubricious surface between the skin and a surface of a hand-held device configured to be brought into contact with the skin;
- said coupling emulsion comprising an aqueous phase, an oil phase, and an emulsifier for stabilizing said emulsion;
- wherein, when the emulsion is stressed, said coupling emulsion has a rheology after evaporation of volatile solvents:
- characterized by a yield stress value (a) of less than 300 Pa and/or (b) that does not increase by more than 10%;
- and
- (ii) written instructions for using said coupling emulsion to provide a lubricious surface between said skin and said surface of said hand-held device configured to be brought into contact with the skin for transmitting energy to said skin surface.
The kit according to claim 12, wherein the collective weight of all particulate materials in said emulsion is less than 1% by weight of said emulsion and the collective weight of all polymeric film formers is less than 2% by weight of said emulsion, and wherein said emulsion comprises one or more active ingredients for providing a therapeutic or cosmetic benefit to the skin.
A method for treating the skin comprising:
- (i) applying to the skin a coupling emulsion for providing a lubricious surface between the skin and a surface of a hand-held device configured to be brought into contact with the skin;
- said coupling emulsion comprising an aqueous phase, an oil phase, and an emulsifier for stabilizing said emulsion;
- wherein, when the emulsion is stressed, said coupling emulsion has a rheology after evaporation of volatile solvents:
- characterized by (a) a yield stress value of less than 300 Pa, and/or (b) that does not increase by more than 10%;
- and
- (ii) contacting said skin with said surface of a hand-held device to transmit enemy to said skin.
The method according to claim 19, wherein said emulsion is a water-in-silicone emulsion or a silicone-in-water emulsion and the oil phase comprises a non-volatile silicone fluid having a viscosity of greater than about 5 centistokes at 37° C.
Dependencies are inferred from the claim text.