Shampoo composition employing anionic phosphoric acid ester surfactant and cationic polymer

A shampoo composition, consisting essentially of

• (A) from 0.1 to 2.5% by weight of at least one anionic phosphoric acid ester having the formula ##STR11## wherein A is ##STR12## R is alkyl having an average carbon atom number of 8 to 18 or alkenyl having an average carbon atom number of 8 to 18;
• R.sub.1 is hydrogen or methyl;
• m is from 0 to 8;
• n is from 1 to 8;
• B is --OX.sub.2 or --A;
• and X.sub.1 and X.sub.2, which can be the same or different, are hydrogen, alkali metal, alkyl (C.sub.1 -C.sub.3)-substituted ammonium or hydroxyalkyl (C.sub.1 -C.sub.3)-substituted ammonium;
• (B) from 0.05 to 2.5% by weight of at least one cationic polymer effective for conditioning hair selected from the group consisting of
• (i) copolymers of quaternized vinylpyrrolidone and aminoethyl methacrylate,
• (ii) copolymers of adipic acid and dimethylaminohydroxypropylene diethylenetriamine,
• (iii) poly-(N,N-dimethyl-3,5-methylenepiperidinium chloride),
• (iv) copolymers of N,N-dimethyl-3,5-methylenepiperidinium chloride and acrylamide,
• (v) copolymers of acrylamide and .beta.-methacryloxyethyl trimethyl ammonium,
• (vi) polyethyleneimines,
• (vii) cationized cellulose, and
• (viii) condensates of polyamines and polyglycols;
• (C) from 1 to 30% by weight of at least one member selected from the group consisting of water-soluble anionic organic surfactant effective for washing hair and different from said anionic phosphoric acid ester, water-soluble nonionic organic surfactant effective for washing hair and water-soluble amphoteric organic surfactant effective for washing hair;
• and
• (D) the balance is essentially water, said shampoo composition having a pH of 4 to 8.