The measured pH values did not changed very much for the samples of SWOP and the reference o/w emulsions (5.92 ± 1 and 5.85 ± 4, respectively) stored under normal conditions during 90 days, while the conductivity measurements demonstrated differences between the SWOP and o/w emulsions (approx. 1200 μS/cm and approx. 180 μS/cm, respectively). The SWOP emulsion had conductivities higher than those of the o/w emulsion. It is obvious that the large amount of free water due to the gel structure of the system and the high concentrations of ions, originating from the polymeric stabilizer – sodium polyacrylate and anionic surfactant – sodium lauryl glucose carboxylate, cause the higher conductivity of the SWOP emulsion.