Hair preparation containing vinyl pyrrolidone copolymer

A hair setting and conditioning composition comprising, approximately by weight,

• I. 0.1 to 35% of a film-forming copolymer having a molecular weight of about 15,000 to 1,500,000 and containing
• A. about 99.5 to 45.1 mole percent of units derived from vinyl pyrrolidone,
• B. 0.5 to 4.9 mole percent of units derived from a monomer of the formula
• CH.sub.2 .dbd.CR.sup.1 --COOR.sup.2 --NR.sup.3 R.sup.4
• wherein
• R.sup.1 is H or CH.sub.3,
• R.sup.2 is C.sub.1-20 alkylene, and
• R.sup.3 and R.sup.4 are independently C.sub.1-4 alkyl, and
• C. 0 to about 50 mole percent of units derived from at least one ethylenically unsaturated copolymerizable monomer different from A and B,
• II. 0.05 to 10% of at least one member selected from the group consisting of cosmetically acceptable organic surface active agents, thickening agents, plasticizers and sequestering agents, in
• III. a solvent base selected from the group consisting of water, monohydric C.sub.2-3 aliphatic alcohols, 1,1,1-trichloroethane, methylene chloride, and mixtures thereof.