A composition comprising: (i) 0.01 to 10 wt % of a linear, cationic conditioning surfactant selected from behenyltrimethylammonium chloride, behentrimonium methosulphate, and mixtures thereof; (ii) 0.1 to 10 wt % of a linear fatty material; (iii) a particulate benefit agent selected from conditioning actives, which are silicone emulsions; (iv) 0.01 to 5 wt %, at 100 % active, of a branched cationic co-surfactant, selected from structure 1, structure 2, structure 3 and mixtures thereof wherein: • R 1, R 2, R 5 and R 6 comprise linear alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 4 to C 20, preferably from C 6 to C 18; • R 3 and R 4 comprise linear or branched alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 6 to C 22; preferably from C 6 to C 12 • n and m have a range of from 0 to 10, preferably selected from 0 and 1; • p has a range of from 1 to 6, preferably selected from 1 and 2; • R 7 comprises an alkyl chain having a carbon-carbon chain length of from C 1 to C 4, preferably C 1 to C 2; • R 8 comprises a proton or an alkyl chain having a carbon-carbon chain length of from C 1 to C 4, preferably C 1 to C 2; and • X is an organic or inorganic anion; wherein the molar ratios of branched cationic co-surfactants (iv) to linear cationic surfactants (i) are in the range of from 1:20 to 1:1; wherein, where the cationic surfactant is a quaternary amine salt, it is selected from quaternary amine salts comprising from 22 to 24 carbon atoms wherein the compositions have a viscosity of from 50,000 to 600,000 mm 2 /s (centipoise), preferably from 50,000 to 450,000 as measured at 30°C on a Brookfield RVT using a Spindle A or B at 0.5 rpm for 60 seconds on a Helipath stand; wherein the silicone emulsions are not myristyloxyl modified silicone; wherein the composition is free from thickening polymers. (i) 0.01 to 10 wt % of a linear, cationic conditioning surfactant selected from behenyltrimethylammonium chloride, behentrimonium methosulphate, and mixtures thereof; (ii) 0.1 to 10 wt % of a linear fatty material; (iii) a particulate benefit agent selected from conditioning actives, which are silicone emulsions; (iv) 0.01 to 5 wt %, at 100 % active, of a branched cationic co-surfactant, selected from structure 1, structure 2, structure 3 and mixtures thereof wherein: • R 1, R 2, R 5 and R 6 comprise linear alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 4 to C 20, preferably from C 6 to C 18; • R 3 and R 4 comprise linear or branched alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 6 to C 22; preferably from C 6 to C 12 • n and m have a range of from 0 to 10, preferably selected from 0 and 1; • p has a range of from 1 to 6, preferably selected from 1 and 2; • R 7 comprises an alkyl chain having a carbon-carbon chain length of from C 1 to C 4, preferably C 1 to C 2; • R 8 comprises a proton or an alkyl chain having a carbon-carbon chain length of from C 1 to C 4, preferably C 1 to C 2; and • X is an organic or inorganic anion; • R 1, R 2, R 5 and R 6 comprise linear alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 4 to C 20, preferably from C 6 to C 18; • R 3 and R 4 comprise linear or branched alkyl chains, saturated or unsaturated, with carbon-carbon chain lengths of from C 6 to C 22; preferably from C 6 to C 12 • n and m have a range of from 0 to 10, preferably selected from 0 and 1; • p has a range of from 1 to 6, preferably selected from 1 and 2; • R 7 comprises an alkyl chain having a carbon-carbon chain length of from C 1 to C 4, preferably C 1 to C 2; • R 8 comprises a proton or an alkyl chain having a carbon-carbon chain length of from C 1 to C 4, preferably C 1 to C 2; and • X is an organic or inorganic anion; wherein the molar ratios of branched cationic co-surfactants (iv) to linear cationic surfactants (i) are in the range of from 1:20 to 1:1; wherein, where the cationic surfactant is a quaternary amine salt, it is selected from quaternary amine salts comprising from 22 to 24 carbon atoms wherein the compositions have a viscosity of from 50,000 to 600,000 mm 2 /s (centipoise), preferably from 50,000 to 450,000 as measured at 30°C on a Brookfield RVT using a Spindle A or B at 0.5 rpm for 60 seconds on a Helipath stand; wherein the silicone emulsions are not myristyloxyl modified silicone; wherein the composition is free from thickening polymers.