Nano-emulsion, the use thereof, and preparation method thereof

• Main Author: KIM YOUNG DAE,PARK KUEN JA,KIM JUNG SOO,KIM JI SOO
• Format: Patent
• Language: English
• Published: 05.09.2007
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES

The present invention relates to nanoemulsions, the use thereof and preparation method thereof wherein, nanoemulsions contain polyoxypropylene-polyoxyethylene vitamin E as emulsifiers and polyacrylic acid or polyacrylic acid derivative crosspolymers as emulsion assistants, In the present invention nanoemulsions containing POP-POE vitamin E as emulsifiers and polyacrylic acid or polyacrylic acid derivative crosspolymers as emulsion assistants have a very small mean droplet diameter ranging from 43 to 96 nm and are very stable and safe. By using the nanoemulsions described above the inventors prepared nanoemulsion cosmetic compositions with a much smaller mean droplet diameter than nanoemulsions prepared only with emulsifiers, polyoxypropylene-polyoxycthylcne vitamin E. The nanoemulsion cosmetic compositions in the present invention have good effects such as skin softening, skin moisturizing, improving dry atopy skin, skin firming and good spreadability when applied on the skin. Particularly, nanoemulsion skin treating compositions in present invention have an advantage of having a long lasting effect of skin treating due to the favorable penetration of active drug components into the skin.