| abstract |
An object of the present invention is to provide a W/O/W type emulsion containing a water-soluble active ingredient in an internal aqueous phase and having stability over time, and a method for producing the same. The present invention contains a water-soluble active ingredient in each of the internal aqueous phases, a solid oily component and a polysulfonium-based surfactant in the oil phase, and a water-soluble polymer in the outer aqueous phase, which provides stability over time. W/O/W type emulsion. |