Low temperature-stable creamy wash composition

1. A low temperature-stable creamy wash composition, which comprises:

(A) at least one N-long-chain-acyl acidic amino acid or a salt thereof;

(B) at least one polyhydric alcohol;

(C) at least one nonionic surfactant;

(D) at least one salt of magnesium and a monovalent or higher anion; and

(E) water,

wherein said wash composition has a hardness at 0° C. according to a load test with a Rheometer of from 5 to 250 (g) and a ratio of hardness at 0° C. to hardness at 25° C. of from 0.5 to 2.4.

2. A low temperature-stable creamy wash composition according to claim 1 , wherein:

said (A) at least one N-long-chain-acyl acidic amino acid or a salt thereof and said (C) at least one nonionic surfactant are present in a weight ratio of from 95:5 to 50:50;

said (A) at least one N-long-chain-acyl acidic amino acid or a salt thereof and said (D) at least one salt of magnesium and a monovalent or higher anion are present in a weight ratio of from 99.9:0.1 to 70:30;

said (A) at least one N-long-chain-acyl acidic amino acid or a salt thereof, said (C) at least one nonionic surfactant, and said (D) at least one salt of magnesium and a monovalent or higher anion are present in a total amount of from 10 to 40% by weight based on the total weight of said low temperature-stable creamy wash composition; and

said (B) at least one polyhydric alcohol is present in an amount of from 10 to 50% by weight based on the total weight of said low temperature-stable creamy wash composition.

3. A low temperature-stable creamy wash composition according to claim 1 , wherein said (A) at least one N-long-chain-acyl acidic amino acid or a salt thereof comprises at least one N-long-chain-acyl glutamic acid or a salt thereof.

4. A low temperature-stable creamy wash composition according to claim 2 , wherein said (A) at least one N-long-chain-acyl acidic amino acid or a salt thereof comprises at least one N-long-chain-acyl glutamic acid or a salt thereof.

5. A low temperature-stable creamy wash composition according to claim 1 , wherein said (C) at least one nonionic surfactant comprises at least one monoglyceryl mono-fatty acid ester.

6. A low temperature-stable creamy wash composition according to claim 2 , wherein said (C) at least one nonionic surfactant comprises at least one monoglyceryl mono-fatty acid ester.

7. A low temperature-stable creamy wash composition according to claim 3 , wherein said (C) at least one nonionic surfactant comprises at least one monoglyceryl mono-fatty acid ester.

8. A low temperature-stable creamy wash composition according to claim 4 , wherein said (C) at least one nonionic surfactant comprises at least one monoglyceryl mono-fatty acid ester.

9. A method for making a composition according to claim 1 , said method comprising:

(i) mixing said (A) at least one N-long-chain-acyl acidic amino acid or a salt thereof, said (B) at least one polyhydric alcohol, said (C) at least one nonionic surfactant, and said (E) water, at a temperature of from 60 to 80° C., to obtain a mixture;

(ii) adding said (D) at least one salt of magnesium and a monovalent or higher anion to said mixture, to obtain a solution; and

(iii) cooling said solution is cooled to obtain said composition.

10. A method of washing the human body, said method comprising:

(a) applying a composition according to claim 1 to at least a part of the human body.