Composition containing organic ammonium salt

A composition comprising:

• an organic ammonium salt having an ammonium cation and an anion;
• and a surfactant, wherein:
• the ammonium cation is represented by the following formula (I):
• N+[R1]n[R2]4-n [Chemical formula 1]
• wherein each R1 independently represents a linear or branched polyhydroxyalkyl group having 1 to 10 carbon atoms and at least three hydroxy groups, and
• wherein each R2 represents a hydrogen atom, and n represents an integer of 1 to 4;
• the anion is a carboxylic acid-based anion;
• the organic ammonium salt is contained in the composition by an amount of not smaller than 10% by mass;
• the mass ratio of the surfactant and the organic ammonium salt is in the range from 1:99 to 90:10;
• and
• the surfactant is a nonionic surfactant selected from the group consisting of polyglycerin fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene lanolin/lanolin alcohol/beeswax derivatives, polyoxyethylene castor oil/hardened castor oil, polyoxyethylene sterols/hydrogenated sterols, polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyethylene glycol fatty acid ester, polyoxyethylene glyceryl isostearates, sorbitan fatty acid esters, glycerin fatty acid esters, diglycerine fatty acid esters and polyglyceryl fatty acid esters.