Abstract: The invention relates to compositions in the form of microemulsion preconcentrates that contain (a) a mixture that consists of a medium-chain triglyceride and an omega-9 fatty acid and/or an omega-6 fatty acid; and (b) a surface-active component that contains a polyoxethylene tenside. When contacted with water or with an aqueous medium these microemulsion preconcentrates form microemulsions. The microemulsions of the O/W type have an average particle size below 150 nm, preferably below 100 nm. The inventive microemulsion preconcentrates and microemulsions are suitable for use as vehicles for substances, namely active agents, that are hardly soluble in water, but soluble in components (a) and/or (b). In the aqueous phase, said microemulsions may contain water-soluble substances.

Abstract: A nanodispersion comprises (a) a membrane-forming molecule, (b) a coemulsifier and (c) a lipophilic component, in pharmaceutical end formulations, the nanodispersion being obtainable by (?) mixing the components (a), (b) and (c) until a homogeneous clear liquid is obtained, and (?) adding the liquid obtained in step (?) to the water phase of the pharmaceutical end formulations, where steps (?) and (?) may be carried out without high energy mixing or homogenization. The nanodispersions prepared according to this invention are suitable as transport vehicles for pharmaceutical active agents.

Abstract: A description is given of the use of a nanodispersion, which comprises (a) a membrane-forming molecule, (b) a coemulsifier and (c) a lipophilic component, in pharmaceutical end formulations, the nanodispersion being obtainable by (?) mixing the components (a), (b) and (c) until a homogeneous clear liquid is obtained, and (?) adding the liquid obtained in step (?) to the water phase of the pharmaceutical end formulations, steps (?) and (?) being carried out without any additional supply of energy. The nanodispersions used according to this invention are suitable as transport vehicles for pharmaceutical active agents.

Abstract: A description is given of the use of a nanodispersion, which comprises (a) a membrane-forming molecule, (b) a coemulsifier and (c) a lipophilic component, in cosmetic end formulation, which nanodispersion is obtainable by (?) mixing the components (a), (b) and (c) until a homogeneous clear liquid is obtained, and (?) adding the liquid obtained in step (?) to the water phase of the cosmetic end formulations, steps (?) and (?) being carried out without any additional supply of energy. The nanodispersions used according to this invention can be easily prepared and are suitable as carrier systems for a very wide range of cosmetic active agents and oil-soluble dyes.

Abstract: The cosmetic preparation contains: (a) an oil-soluble active ingredient that is suitable for skin cosmetics, (b) a partial fatty acid ester of polyoxyethylene sorbitan, (c) at least one phospholipid, (d) ethanol, and (e) water as a carrier liquid. The phospholipid is dissolved in ethanol, and then the partial fatty acid esters of polyoxyethylene sorbitan and the active ingredient are added. The oil phase that is obtained is added to water and stirred. The preparation is obtained in the form of a nanodispersion.