Method of delivering a skin benefit
AssigneeWyeth
InventorsShekhar Mitra, Dean A. Zimmerman, Vincent York-Leung Wong, Marina Belkin
Life of this patent
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Abstract
A method of providing a skin benefit to the skin including the use of a skin care active and a portable moist heat delivery system comprising: a water vapor generating portion comprising a water vapor source and a heat source; and 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, a latent heat delivery surface, and optionally a skin contact layer, where the water vapor generating portion and the water vapor-air regulating portion are in fluid communication is disclosed.
Claims21
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.
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.
Dependencies are inferred from the claim text.