A personal liquid cleanser composition comprising: a. 15 to 50 wt% of fatty acyl isethionate surfactant product, wherein the fatty acyl isethionate product is Direct Esterification of Fatty Isethionate (DEFI) and contains 15 to 30 wt% free fatty acids and 65 to 80 wt% of sodium fatty acyl isethionate and wherein more than 65 wt % of the fatty acyl group of the fatty acyl isethionate have 12 to 18 carbon atoms, said fatty acyl isethionate surfactant product comprising at least 60% of total fatty acyl isethionate surfactant product of item a and co-surfactants of item b in the liquid composition; b. 0 to 15 wt% of a co-surfactant selected from the group consisting of anionic surfactant excluding fatty acyl isethionate of (a), amphoteric and nonionic surfactants and mixture thereof wherein the amount of said cosurfactant is 0 to 40 wt% of total amount of fatty acyl isethionate surfactant product of item a and cosurfactant of item b; c. 1 % by wt. and above of an elevated temperature stabilizing system comprising: i. 0.1 to 8 wt% of a compound selected from the group consisting of alkanolamide, alkylamineoxide and mixture of above; ii. 0.3 to 8 wt% of a compound selected from the group consisting of C9 to C30 aliphatic hydrocarbon oils, ammonium salt, organic amine, linear C8 to C13 fatty acid/fatty alcohol, branched fatty acid and mixtures thereof, wherein the total amount of fatty alcohols and branched fatty acids is no more than 2 wt% in the liquid composition; wherein the ratio of fatty acyl isethionate surfactant product of item a to cosurfactant of item b is in the range of 10/0 to 6/4; the viscosity of the said liquid cleanser composition at 0.01 s -1 is at least 250 Pas,; and the ratio of the viscosity at 40 °C to the viscosity at 25 °C, when measured at 0.01 s -1, is at least 0.1, wherein said composition is stable i.e., is physically stable and will not partition as can be visually observed at 45 °C for at least 2 weeks; and wherein at ambient temperature, said composition contains surfactant crystals with dissolution temperature between 30 °C to 50 °C, wherein viscosity is measured according to "Methodology for Viscosity Measurement" in the description. a. 15 to 50 wt% of fatty acyl isethionate surfactant product, wherein the fatty acyl isethionate product is Direct Esterification of Fatty Isethionate (DEFI) and contains 15 to 30 wt% free fatty acids and 65 to 80 wt% of sodium fatty acyl isethionate and wherein more than 65 wt % of the fatty acyl group of the fatty acyl isethionate have 12 to 18 carbon atoms, said fatty acyl isethionate surfactant product comprising at least 60% of total fatty acyl isethionate surfactant product of item a and co-surfactants of item b in the liquid composition; b. 0 to 15 wt% of a co-surfactant selected from the group consisting of anionic surfactant excluding fatty acyl isethionate of (a), amphoteric and nonionic surfactants and mixture thereof wherein the amount of said cosurfactant is 0 to 40 wt% of total amount of fatty acyl isethionate surfactant product of item a and cosurfactant of item b; c. 1 % by wt. and above of an elevated temperature stabilizing system comprising: i. 0.1 to 8 wt% of a compound selected from the group consisting of alkanolamide, alkylamineoxide and mixture of above; ii. 0.3 to 8 wt% of a compound selected from the group consisting of C9 to C30 aliphatic hydrocarbon oils, ammonium salt, organic amine, linear C8 to C13 fatty acid/fatty alcohol, branched fatty acid and mixtures thereof, wherein the total amount of fatty alcohols and branched fatty acids is no more than 2 wt% in the liquid composition; i. 0.1 to 8 wt% of a compound selected from the group consisting of alkanolamide, alkylamineoxide and mixture of above; ii. 0.3 to 8 wt% of a compound selected from the group consisting of C9 to C30 aliphatic hydrocarbon oils, ammonium salt, organic amine, linear C8 to C13 fatty acid/fatty alcohol, branched fatty acid and mixtures thereof, wherein the total amount of fatty alcohols and branched fatty acids is no more than 2 wt% in the liquid composition;