The present invention relates to a stable, nondetergent composition based on fatty acids, in microemulsion form, for administration to humans or animals, comprising: from 5 to 30% by weight of one or more fatty acids with a free carboxylic acid function, as active ingredient; from 5 to 35% by weight of one or more surfactants; from 5 to 30% by weight of one or more C.sub.1 -C.sub.12 alcohols, as cosurfactant; from 5 to 35% by weight of one or more water-soluble compounds with a carbonyl or hydroxyl function; and from 0 to 35% by weight of one or more water-immiscible compounds; the said composition having a pH of less than 6.5.

Присытствыющий вымысел относит к стабилизированному, nondetergent составу основанному на наварных кислотах, в форме microemulsion, для администрации к людям или животным, состоя из: от от 5 до 30% by weight of one or more наварные кислоты с свободно карбоновой кисловочной функцией, как активно ингридиент; от от 5 до 35% by weight of one or more сурфактанты; от от 5 до 30% by weight of one or more C.sub.1 - спирты C.sub.12, как cosurfactant; от от 5 до 35% by weight of one or more водорастворимые смеси с функцией карбонила или гидроксила; и от от 0 до 35% by weight of one or more water-immiscible смеси; сказанный состав имея pH меньш чем 6.5.