Abstract: Shampoo compositions are disclosed which comprise (a) from about 15% to about 25% of a synthetic anionic surfactant; (b) from about 0.1% to about 10% of a dispersed, insoluble, non-volatile silicone or mixtures thereof; (c) a suspending agent consisting of mixtures of xanthan gum together with long chain acyl derivatives or long chain amine oxides selected from the group consisting of ethylene glycol esters of C.sub.16 -C.sub.22 fatty acids, alkanol amides of C.sub.16 -C.sub.22 alkyl dimethyl amine oxides, and mixtures thereof, the level of xanthan gum being from about 0.25% to about 0.50% of the composition and the level of long chain derivative or long chain amine oxide being from about 1.0% to about 2.0% of the composition; and (d) the remainder water.

Abstract: Shampoo compositions comprising an alkylamido betaine and a quaternary compound and having a pH in the range of from 2 to about 4 are disclosed.

Abstract: Shampoo compositions comprising a quaternary ammonium compound and an alkylamido betaine wherein the alkyl group is either lauryl, myristyl or a mixture of the two.

Abstract: A process for producing heavy metal, magnesium or aluminum pyridinethione salt crystals involving reacting a water soluble salt of the desired metal with a water soluble pyridinethione salt or pyridinethione itself in an aqueous surfactant medium.