Patent ID: 7115282

Claim:
An anhydrous composition comprising: a plurality of solid nano-spheres, each of said solid nano-spheres comprising an effective amount of a first active agent, said plurality of nano-spheres are formed of a hydrophobic material, said hydrophobic material is selected from one or more of the group consisting of natural wax, synthetic wax, vegetable wax, natural wax and silicon copolymer, synthetic wax and silicon copolymer, fatty acid esters, fatty alcohols, solid hydrogenated plant oil, natural polymers and synthetic polymers, said plurality of nano-spheres being encapsulated in a moisture sensitive micro-sphere, said moisture sensitive micro-sphere is formed of a moisture sensitive matrix material, said moisture sensitive micro-sphere comprising a second active agent encapsulated in said moisture sensitive matrix material, said second active agent is the same or different than said first active agent, said first and second active agents being selected from the group consisting of fragrance, flavor, cosmetic agent, dermatological agent and pharmaceutical agent, said moisture sensitive micro-sphere dissolves to release said second active agent and said plurality of nano-spheres upon contact with moisture from the skin or lips to provide a burst of said second active agent and said nano-spheres release said first active agent continuously thereafter for an extended period of time or said micro-sphere swells or softens upon contact with moisture from the skin or lips to slowly release said second active agent and said nanospheres and said nano-spheres release said first active agent continuously thereafter for an extended period of time in the range of a day to a few weeks.