Bayer HealthCare LLC

Abstract

In one aspect, the present invention is directed to formulations comprising at least one pressure generating vehicle along with at least one skincare active agent in a container such that the pressure generating vehicle would eject the formulation as foam, whipped cream or a similar form upon application of external pressure on the container.

1 - 14 . (canceled) 
     
     
         15 . A sunscreen formulation for topical application in a device, the formulation comprising at least one pressure generating vehicle and at least one sunscreen active agent, wherein said pressure generating vehicle is present in said device in sufficient amounts and pressure suitable to expel said formulation in the form of foam or whipped cream upon application of external pressure on said device, and wherein the pressure generating vehicle comprises carbon dioxide. 
     
     
         16 . The formulation of  claim 15 , wherein there are at least two sunscreen active agents. 
     
     
         17 . The formulation of  claim 15 , wherein the pressure generating vehicle is present in an amount of about 0.1% to about 30% by weight. 
     
     
         18 . The formulation of  claim 15 , wherein the pressure generating vehicle is present in an amount of about 0.1% to about 10% by weight. 
     
     
         19 . The formulation of  claim 18 , wherein the pressure generating vehicle further comprises propane, butane, isobutane, isobutene, dimethyl ether, nitrous oxide, or blends thereof. 
     
     
         20 . (canceled) 
     
     
         21 . The formulation of  claim 15 , wherein said carbon dioxide is generated by mixing an acid and a base inside said device. 
     
     
         22 . The formulation of  claim 21 , wherein said acid is acetic acid or citric acid. 
     
     
         23 . The formulation of  claim 21 , wherein said base is selected from the group consisting of sodium bicarbonate, sodium carbonate, potassium bicarbonate and potassium carbonate. 
     
     
         24 . The formulation of  claim 15  additionally comprising one or more agents selected from the group consisting of an emollient, a humectant, a pH modifier, a colorant, and a foam stabilizer. 
     
     
         25 . The formulation of  claim 21 , wherein said base is sodium bicarbonate. 
     
     
         26 . The formulation of  claim 15 , wherein the formulation additionally contains a thickening agent. 
     
     
         27 . The formulation of  claim 15 , wherein the formulation additionally contains an emulsifier. 
     
     
         28 . The formulation of  claim 15 , wherein the formulation is a water-in-oil emulsion. 
     
     
         29 . The formulation of  claim 15 , wherein the formulation is an oil-in-water emulsion.