[Creams protective against electrolytes--evaluation of protection in vitro]

Diffusion-inhibiting effect of the barrier creams in case of some electrolytes i. e. alkalies, acids, salts of alkaline metals, and salts of heavy metals in two chambers diffusion apparatus have been determined. Protection efficiency of two own creams and two reference creams (silicone Goldschmidt's cream, Essen FRG, and "Anthydro" made by Phypro Laboratories 86270 La Roche, Posay, France) were compared. High protection efficiency of own creams, especially in case of sulfuric acid, hydrochloric acid, sodium nitrite, potassium bichromate and nickel nitrate was found. Diffusion of potassium hydroxide and sodium hydroxide did not exceed 2% of control values during 4 hrs period.