Abstract: The present invention relates to an improved conditioning shampoo composition which is stable, thoroughly cleanses the hair, and imparts improved physical and cosmetic properties to hair such as wet and dry comb, wet and dry feel, gloss, static control and manageability, yet does not cause build-up on human hair as is common with many conditioning shampoos. The shampoo composition comprises by weight 8%-20% of an anionic surfactant, 0.1%-5% of a water soluble cationic surfactant, 0.1%-8% of an insoluble, dispersed or emulsified, non-volatile silicone, and 0.5%-5% of a suspending or emulsifying nonionic surfactant such as an N-alkylated-2-pyrrolidone having a structure: ##STR1## wherein R is an alkyl moiety, straight chain or branched chain, including from about 8 to about 16 carbon atoms, and water. Preferred embodiments additonally may contain from about 0.5% to about 1% by weight of a non-volatile amine-functional siloxane.