Low-irritation compositions and methods of making the same

Abstract

Provided are compositions comprising low molecular weight polymeric materials and surfactants having reduced irritation associated therewith, methods of reducing the irritation associated with a personal care composition comprising an anionic and/or amphoteric surfactant, the methods comprising combining a low molecular weight polymeric material capable of binding a surfactant thereto with an anionic surfactant to produce a reduced irritation personal care composition, and methods of using such compositions to cleanse the hair or skin with reduced irritation.

1 . A composition comprising a low molecular weight polyester and at least one surfactant selected from the group consisting of anionic surfactants, amphoteric surfactants, and combinations of two or more thereof. 
     
     
         2 . The composition of  claim 1  wherein said low molecular weight polyester has a molecular weight of from about 3,500 to about 100,000 g/mol. 
     
     
         3 . The composition of  claim 1  wherein said 1 low molecular weight polyester and surfactant exhibit a C 90  value of greater than 250 mg/L. 
     
     
         4 . The composition of  claim 1  wherein said reduced irritation composition has a Delta CMC of at least about 80. 
     
     
         5 . The composition of  claim 1  wherein said at least one surfactant comprises at least one anionic surfactant selected from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl monoglyceryl ether sulfates, alkyl sulfonates, alkylaryl sulfonates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, alkyl sulfosuccinamates, alkyl amidosulfosuccinates, alkyl carboxylates, alkyl amidoethercarboxylates, alkyl succinates, fatty acyl sarcosinates, fatty acyl amino acids, fatty acyl taurates, fatty alkyl sulfoacetates, alkyl phosphates, and mixtures of two or more thereof. 
     
     
         6 . The composition of  claim 5  wherein said at least one anionic surfactant comprises at least one surfactant selected from the group consisting of sodium trideceth sulfate, sodium laureth sulfate, and combinations thereof. 
     
     
         7 . The composition of  claim 1  wherein said at least one surfactant comprises at least one amphoteric surfactant. 
     
     
         8 . The composition of  claim 7  wherein said at least one amphoteric surfactant comprises a betaine.