Hair conditioning composition comprising two cationic surfactants and benefit material such as salicylic acid and 2-hexyl-1-decanol

A hair conditioning composition comprising by weight:

• from about 1.0% to about 10% of a cationic surfactant being a combination of a mono-long alkyl amine and a mono-long alkyl quaternized ammonium salt;
• from about 2.5% to about 30% of a high melting point fatty compound;
• an aqueous carrier;
• from about 0.15% to about 20% of a benefit material selected from one or more of the following:
• 1) Class I benefit material having the structure selected from:
• wherein R′ is —COOY, sulfonic acid, or C═CH—COOY, Y is hydrogen or a metal ion, R1, R2, R3, R4, R5 is hydrogen, methyl, ethyl, propyl, vinyl, allyl, methoxy, ethoxy, hydroxyl, halogen, sulfate, sulfonate, nitro, or —CH═CH—COOR, and
• wherein the Class I benefit material is an acidic material, and
• wherein the Class I benefit material has a % Protein binding higher than 20 and Molecular Volume lower than 500 and Partition coefficient octanol to water (log P) lower than 3 and hydrogen binding higher than 10 and pKa lower than 5.0;
• 2) Class II benefit material being at least one selected from the following (A)-(G):
• (A) Having the following structure:
• wherein R is hydrogen or metal ion, R6 is methyl, ethyl, propyl, alkenyl or phenyl having less than 12 carbon atoms and wherein R7, R8, R9, R10, R11, R12 are hydrogen, methyl, ethyl, propyl, phenyl, hydroxyl, methoxy or ethoxy groups;
• (B) Alcohol having the following structure:
• wherein R13 is an alkyl, alkenyl, straight or branched carbon chains and;
• and wherein R14 is hydrogen, hydroxyl, alkyl, methyl, ethyl and propyl wherein the structure of such alcohol contains less than 20 total carbon atoms;
• (C) An alcohol comprising an unsaturated double bond in the C2 position, such as phytol.
• (D) An alkyl-substituted glycol wherein the structure of such alkyl substituted glycol contains less than 20 carbon atoms;
• (E) A monoalkyl or dialkyl substituted glycerin or mono- or di-esters of glycerin with fatty acids wherein the structure of such monoalkyl- or dialkyl-substituted glycerin or glycerin esters contains less than 20 total carbon atoms;
• (F) Having the following structure:
• wherein R15 could be hydrogen, alkyl, alkenyl, phenyl group and wherein the structure of the R13 group contains less than 20 carbon atoms;
• (G) A fatty acid ester containing from 15-40 total carbon atoms;
• and wherein the Class II benefit material is weakly to non-acidic,
• and wherein the Class II benefit material has % Protein binding higher than 10, and Molecular Volume lower than 1500, and Partition coefficient octanol to water (log P) higher than 0.5, hydrogen-binding higher than 4, and pKa of 5 or higher.