Abstract: A method for preparing a liquid crystal emulsion includes: a) mixing, warming and dissolving intercellular lipid ingredients, non-polyoxyethylene (POE) based non-ionic surfactant, higher fatty alcohol, oil and wax to provide an oil phase part; b) mixing, warming and dissolving water, polyol and the other aqueous phase ingredients to provide an aqueous phase part; c) adding the oil phase part to the aqueous phase part, followed by agitation; d) introducing a viscosity modifier to the mixture solution under agitation; e) subjecting the mixture solution to rapid cooling under vacuum while carrying out debubbling under vacuum; and f) filtering the mixture solution through a filtering paper or filtering cloth. Provided is a stable liquid crystal emulsion having a multilayer lamellar structure including a large amount of intercellular lipid ingredients through a process using rapid cooling. The liquid crystal emulsion has an oil phase part and an aqueous phase part.

Abstract: Provided is a method for preparing a nanoemulsion, including mixing an oil phase part (A) containing a ceramide or derivative thereof, cholesterol, non-ionic surfactant, phospholipid and a polyol, a perfume part (B) containing a perfume ingredient, non-ionic surfactant and an alcohol, and an aqueous phase part (C) containing the other water-soluble active ingredients. When a nanoemulsion is obtained by the method, it is possible to reduce processing time and cost since a non-ionic surfactant is used without a high-pressure emulsification process, and the obtained nanoemulsion is more stable against a change in temperature than the other solubilized formulations.

Abstract: A method for preparing a liquid crystal emulsion includes: a) mixing, warming and dissolving intercellular lipid ingredients, non-polyoxyethylene (POE) based non-ionic surfactant, higher fatty alcohol, oil and wax to provide an oil phase part; b) mixing, warming and dissolving water, polyol and the other aqueous phase ingredients to provide an aqueous phase part; c) adding the oil phase part to the aqueous phase part, followed by agitation; d) introducing a viscosity modifier to the mixture solution under agitation; e) subjecting the mixture solution to rapid cooling under vacuum while carrying out debubbling under vacuum; and f) filtering the mixture solution through a filtering paper or filtering cloth. Provided is a stable liquid crystal emulsion having a multilayer lamellar structure including a large amount of intercellular lipid ingredients through a process using rapid cooling. The liquid crystal emulsion has an oil phase part and an aqueous phase part.

Abstract: Provided is a method for preparing a nanoemulsion, including mixing an oil phase part (A) containing a ceramide or derivative thereof, cholesterol, non-ionic surfactant, phospholipid and a polyol, a perfume part (B) containing a perfume ingredient, non-ionic surfactant and an alcohol, and an aqueous phase part (C) containing the other water-soluble active ingredients. When a nanoemulsion is obtained by the method, it is possible to reduce processing time and cost since a non-ionic surfactant is used without a high-pressure emulsification process, and the obtained nanoemulsion is more stable against a change in temperature than the other solubilized formulations.