Patent ID: 7241724

Claim:
A personal product composition comprising 5 to 85% by wt. of a surfactant system comprising alkyl phosphate surfactant or alkyl phosphate surfactant blends and an auxiliary surfactant selected from the group consisting of alkyl carboxylates, alkyl polyether carboxylates, alkyl amino carboxylates, polyhydroxy surfactants, alkyl phenyl alkoxylates and mixtures thereof; wherein said auxiliary surfactant has a pKa which is higher (weaker acid) than that of average pKa of first ionizing H+ in said phosphate surfactant or alkyl phosphate surfactant blend. wherein pH of the composition is about 4.5 to 6.5; wherein phosphate surfactant and/or blend and auxiliary surfactant together comprise 40% or greater of the surfactant system; wherein molar ratio of alkyl phosphate ester to auxiliary surfactant is about 55:45 to 65:35, and wherein said composition further comprises amino acid counterions.