The complicated reverse aggregates of surfactants in non-polar organic solvents are reviewed. So far, most of reverse wormlike micelles and reverse vesicles are formed by lecithin and only a few by some derivatives or sodium bis(2-ethylhexyl) sulfosuccinate (AOT). All these amphiphilies are soluble in non-polar organic solvents. Suitable molecular packing geometry is always required for the construction of reverse wormlike micelles or reverse vesicles. The new method developed by Raghavan group to prepare organic solutions made single inorganic salts possible as effective conditioning agents to improve the molecular packing geometry, which progresses the study of reverse wormlike micelles. Some suggestions are made so as to expand the investigations about the complicated reverse aggregates of surfactants in non-polar organic solvents, which include the role of water added, the preparing methods, the surfactant dissolution upon the aggregate formation, and the improvement of surfactant molecular geometry, etc.

Contents
1 Introduction
2 Summary on complicated reverse aggregates
3 The role of trace-water in reverse aggregation