Topical leave-on compositions containing pantothenic acid and its derivatives to reduce the need for underarm shaving

Abstract

A method for softening hair and reducing the need for underarm shaving. One exemplary method includes the step of providing a topical leave-on composition that comprises: (a) from about 0.1% to about 30% by weight of an aluminum-containing antiperspirant active; (b) from about 0.01% to about 10% by weight of a stable pantothenic acid having the formula: wherein R1, R2 and R3 are independently selected from the group consisting of hydrogen, C2-C20 hydrocarbons, C2-C20 carboxylic acid esters, and combinations thereof; (c) from about 10% to about 99.89% by weight of a liquid carrier; (d) wherein said composition is stable after 24 hours at 85C., wherein stable means that said composition is substantially free of off-odor and free of undesirable visible crystals; and (e) wherein said pantothenic acid is stable in the presence of said aluminum-containing antiperspirant active.

What is claimed is:  
     
         1 . A method for softening hair and reducing the need for underarm shaving comprising the step of providing a topical leave-on composition wherein said composition comprises: 
 (a) from about 0.1% to about 30% by weight of an alumninum-containing antiperspirant active;    (b) from about 0.01% to about 10% by weight of a stable pantothenic acid having the formula:                          wherein R 1 , R 2  and R 3  are independently selected from the group consisting of hydrogen, C2-C20 hydrocarbons, C2-C20 carboxylic acid esters, and combinations thereof;    (c) from about 10% to about 99.89% by weight of a liquid carrier;    (d) wherein said composition is stable after 24 hours at 85C., wherein stable means that said composition is substantially free of off-odor and free of undesirable visible crystals; and    (e) wherein said pantothenic acid is stable in the presence of said aluminum-containing antiperspirant active.    
     
     
         2 . A method for softening hair and reducing the need for underarm shaving comprising the step of providing a topical leave-on composition wherein said composition comprises: 
 (a) from about 0.1% to about 30% by weight of an aluminum-containing antiperspirant active;    (b) from about 0.01% to about 10% by weight of a stable pantothenic acid derivative having the formula:                          wherein R 1 , R 2  and R 3  are independently selected from the group consisting of hydrogen, C2-C20 hydrocarbons, C2-C20 carboxylic acid esters, and combinations thereof, wherein not more than two of R 1 , R 2  and R 3  are hydrogen;    (c) from about 10% to about 99.89% by weight of a liquid carrier;    (d) wherein said composition is stable after 24 hours at 85C., wherein stable means that said composition is substantially free of off-odor and free of undesirable visible crystals; and    (e) wherein said pantothenic acid derivative is stable in the presence of said aluminum-containing antiperspirant active.    
     
     
         3 . A method for softening hair and reducing the need for underarm shaving comprising the step of providing a topical leave-on composition wherein said composition comprises: 
 (a) from about 0.01% to about 10% by weight of a stable pantothenic acid having the formula:                          wherein R 1,  R 2  and R 3  are independently selected from the group consisting of hydrogen, C2-C20 hydrocarbons, C2-C20 carboxylic acid esters, and combinations thereof;    (b) from about 10% to about 99.89% by weight of a liquid carrier;    (c) wherein said composition is stable after 24 hours at 85C., wherein stable means that said composition is substantially free of off-odor and free of undesirable visible crystals;    (d) wherein said composition has a pH of from about 2.0 to about 5.0 and are intended solely for leave-on application; and    (e) wherein said pantothenic acid is stable in said composition.    
     
     
         4 . The method of  claim 1  wherein said stable pantothenic acid is made stable by one or more of the following techniques: encapsulation, use of multichamber packaging, use of multisectioned liquids, use of multisection soft solids, use of multiphase solids, and combinations thereof.  
     
     
         5 . The method of  claim 3  wherein said stable pantothenic acid is made stable by one or more of the following techniques: encapsulation, use of multichamber packaging, use of multisectioned liquids, use of multisection soft solids, use of multiphase solids, and combinations thereof.  
     
     
         6 . The composition of  claim 1  wherein said stable pantothenic acid is a salt of pantothenic acid.  
     
     
         7 . The composition of  claim 3 , wherein the composition further comprises from about 0.1% to about 20% by weight of an organic acid.  
     
     
         8 . The composition of  claim 1  further comprising petrolatum from about 0.1% to about 15% by weight of the composition.  
     
     
         9 . The composition of  claim 2  further comprising petrolatum from about 0.1% to about 15% by weight of the composition.  
     
     
         10 . The composition of  claim 3  further comprising petrolatum from about 0.1% to about 15% by weight of the composition.  
     
     
         11 . The method of  claim 1  wherein the hair is sufficiently softened such that a consumer notices an enhanced ease of shaving at about 72 hours after application of said composition, more preferably 48 hours.  
     
     
         12 . The method of  claim 2  wherein the hair is sufficiently softened such that a consumer notices an enhanced ease of shaving at about 72 hours after application of said composition, more preferably 48 hours.  
     
     
         13 . The method of  claim 3  wherein the hair is sufficiently softened such that a consumer notices an enhanced ease of shaving at about 72 hours after application of said composition, more preferably 48 hours.  
     
     
         14 . The method of  claim 1  wherein the hair is sufficiently softened such that a consumer notices a reduced need for shaving at about 14 days after application of said composition.  
     
     
         15 . The method of  claim 2  wherein the hair is sufficiently softened such that a consumer notices a reduced need for shaving at about 14 days after application of said composition.  
     
     
         16 . The method of  claim 3  wherein the hair is sufficiently softened such that a consumer notices a reduced need for shaving at about 14 days after application of said composition.