Antidandruff composition for treating the hair and scalp, in a cosmetically
acceptable medium, has at least one pyridinethione salt, one insoluble conditioner,
and at least one acrylic terpolymer of: a monomer (a) selected from the group consisting
of a C1-C6 alkyl acrylate and a C1-C6 alkyl
methacrylate; a monomer (b) selected from the group consisting of a heterocyclic
vinyl compound containing at least one nitrogen or sulphur atom, a (meth)acrylamide,
a mono- or di(C1-C4)alkylamino(C1-C4)alkyl
(meth)acrylate and a mono- or di(C1-C4) alkylamino(C1-C4)
alkyl(meth)acrylamide; and a monomer (c) selected from the group consisting of
a urethane produced by reaction between a monoethylenic unsaturated isocyanate
and a nonionic surfactant, a copolymerizable ethylenic surfactant monomer, a surfactant
monomer of urea type, an allyl ether containing alkylenoxy groups, and a nonionic
monomer of urethane type.
