Abstract: The present invention provides a thickening composition simultaneously exhibiting suitable thickening performance and superior usability, which contains N-long-chain acyl acidic amino acid and/or a salt thereof, an amphipathic substance, an inorganic salt, and water as essential components, and has a viscosity of not less than 200 mPa·s. By the addition of the thickening composition, moreover, cleansing compositions and cosmetic compositions for skin, hair and the like, which maintain thickening performance and usability, while containing N-long-chain acyl acidic amino acid and/or a salt thereof are provided.

Abstract: The present invention provides a thickening composition simultaneously exhibiting suitable thickening performance and superior usability, which contains N-long-chain acyl acidic amino acid and/or a salt thereof, an amphipathic substance, an inorganic salt, and water as essential components, and has a viscosity of not less than 200 mPa·s. By the addition of the thickening composition, moreover, cleansing compositions and cosmetic compositions for skin, hair and the like, which maintain thickening performance and usability, while containing N-long-chain acyl acidic amino acid and/or a salt thereof are provided.

Abstract: The present invention provides a thickening composition simultaneously exhibiting suitable thickening performance and superior usability, which contains N-long-chain acyl acidic amino acid and/or a salt thereof, an amphipathic substance, an inorganic salt, and water as essential components, and has a viscosity of not less than 200 mPa·s. By the addition of the thickening composition, moreover, cleansing compositions and cosmetic compositions for skin, hair and the like, which maintain thickening performance and usability, while containing N-long-chain acyl acidic amino acid and/or a salt thereof are provided.

Abstract: The present invention provides a thickening composition simultaneously exhibiting suitable thickening performance and superior usability, which contains N-long-chain acyl acidic amino acid and/or a salt thereof, an amphipathic substance, an inorganic salt, and water as essential components, and has a viscosity of not less than 200 mPa·s. By the addition of the thickening composition, moreover, cleansing compositions and cosmetic compositions for skin, hair and the like, which maintain thickening performance and usability, while containing N-long-chain acyl acidic amino acid and/or a salt thereof are provided.

Abstract: An oil-in-water emulsion composition having a high oil content, which comprises (a) a sucrose fatty acid ester, (b) water, and (c) an oily component, wherein (i) component (c) is present in an amount of 90% by weight or more based on the total weight of components (a), (b) and (c), (ii) at least 20% by weight of the fatty acid moiety constituting component (a) are derived from a saturated fatty acid having 8 to 16 carbon atoms, an unsaturated fatty acid having 16 to 22 carbon atoms, or a mixture thereof, and the proportion of a monoester in component (a) is 60% by weight or more; and a method for producing the oil-in-water emulsion composition having a high oil content, which comprises adding, to a mixture comprising the components (a), (b) and (c), a solid which is insoluble in the mixture in an amount of 0.01 to 10% by volume based on the total volume of the components (a), (b), and (c), followed by stirring and removal of the solid.