Granted Patent B2

US 8,409,154 · App. 12/465,333 · Granted Apr 2, 2013

Abstract

Claims (36)

1. A method of providing benefits to the skin comprising:

(a) applying a skin care composition to the skin to provide a beauty care benefit;

(b) applying a portable moist heat delivery system to the skin coated with the skin care composition, the portable moist heat delivery system comprising:

(1) a water vapor generating portion comprising a water vapor source and a heat source; and

(2) a water vapor-air regulating portion located at a skin-facing side of the water vapor generating portion, the water vapor-air regulating portion comprising a water vapor-air mixing layer, a water vapor-air distribution layer, and optionally a skin contact layer;

the water vapor generating portion and the water vapor-air regulating portion being in fluid communication; and the water vapor-air regulating portion having a latent heat delivery surface disposed adjacent the water vapor-air regulating portion, where the water vapor-air regulating portion provides a mixture of water vapor and air having a water vapor to dry air ratio of less than 0.065 kg water/kg dry air, wherein the portable moist heat delivery system transfers from about 15% to about 95% of heat to a user as latent heat of condensation, while maintaining skin temperature less than 43° C.; and

(c) activating the portable moist heat delivery system.

2. The method of claim 1 , wherein the skin care composition comprises a skin care active selected from the group consisting of vitamins, peptides, sugar amines, sunscreens, oil control agents, tanning actives, anti-acne actives, desquamation actives, anti-cellulite actives, chelating agents, skin lightening agents, flavonoids, protease inhibitors, non-vitamin antioxidants and radical scavengers, hair growth regulators, anti-wrinkle actives, anti-atrophy actives, minerals, phytosterols and/or plant hormones, tyrosinase inhibitors, N-acyl amino acid compounds, moisturizers, plant extracts, depillatories and any combination thereof.

3. The method of claim 1 , wherein the portable moist heat delivery system is left on the skin for about 1 minute to about eight hours.

4. The method of claim 3 , wherein the portable moist heat delivery system is left on the skin for about 15 minutes.

5. The method of claim 3 , wherein the portable moist heat delivery system is left on the skin for about 30 minutes.

6. The method of claim 1 wherein the portable moist heat delivery system transfers from about 20% to about 80% of heat to a user as latent heat of condensation, while maintaining skin temperature less than 43° C.

7. The method of claim 1 wherein the portable moist heat delivery system transfers from about 40% to about 75% of heat to a user as latent heat of condensation, while maintaining skin temperature less than 43° C.

8. The method of claim 1 wherein the portable moist heat delivery system is mask shaped.

9. The method of claim 8 wherein the skin care composition is a film on the portable moist heat delivery system.

10. The method of claim 1 wherein the portable moist heat delivery system is a rectangular patch.

11. The method of claim 1 wherein the portable moist heat delivery system further comprises an adhesive.

12. The method of claim 1 wherein the portable moist heat delivery system is a circular patch.

13. The method of claim 1 wherein the portable moist heat delivery system is shaped to cover the lower half of the face.

14. The method of claim 1 further comprising the step of providing a skin surface temperature of at least 36° C. within about 5 minutes of initiation of heating of the portable moist heat delivery system.

15. The method of claim 1 wherein the water vapor source comprises at least one water vapor generating heat cell.

16. A method of providing benefits to the skin comprising:

(a) applying a portable moist heat delivery system to the facial skin, wherein the portable moist heat delivery system comprises:

(1) a water vapor generating portion comprising a water vapor source and a heat source; and

(2) a water vapor-air regulating portion located at a skin-facing side of the water vapor generating portion, the water vapor-air regulating portion comprising a water vapor-air mixing layer, a water vapor-air distribution layer, and optionally a skin contact layer; the water vapor generating portion and the water vapor-air regulating portion being in fluid communication and the water vapor-air regulating portion having a latent heat delivery surface disposed adjacent the water vapor-air regulating portion; where the water vapor-air regulating portion provides a mixture of water vapor and air having a water vapor to dry air ratio of less than 0.065 kg water/kg dry air, and wherein the portable moist heat delivery system transfers from about 15% to about 95% of heat to a user as latent heat of condensation, while maintaining skin temperature less than 43° C.;

(b) applying a shaving composition to the facial skin; and

(c) shaving the facial skin.

17. The method of claim 16 , wherein the portable moist heat delivery system is applied to the facial skin for 5 minutes.

18. The method of claim 1 , further comprising:

(d) contacting the skin with the mixture of water vapor and air having a water vapor to dry air ratio of less than 0.065 kg water/kg dry air; condensing the mixture of water vapor and air at the latent heat delivery surface to transfer the latent heat energy to the skin; or a combination thereof.

19. The method of claim 16 , further comprising:

contacting the skin with the mixture of water vapor and air having a water vapor to dry air ratio of less than 0.065 kg water/kg dry air; condensing the mixture of water vapor and air at the latent heat delivery surface to transfer the latent heat energy to the skin; or a combination thereof.

20. The method of claim 1 , further comprising:

(d) transferring from about 15% to about 95% of heat to a user as latent heat of condensation.

21. The method of claim 16 , further comprising:

transferring from about 15% to about 95% of heat to a user as latent heat of condensation.

Assignments (7)