This proposal is to explore the magnetic properties and molecular dynamics of a new class of magnetic ionic liquid surfactants1 (MILSs) (see Fig. 1). The MILSs investigated here are of great interest as they exhibit amphiphilic behaviour and are, most importantly at the same time magnetically active. Hence, they have novel potential applications, allowing non-invasive recovery of ILs from reaction mixtures, facile separations, targeted delivery, control of surface tension, and other magnetophoretic applications. This proposal is to understand the origin of magnetism as well as the effect of the magnetic field on the molecular ordering in these systems. Muons are ideal for answering these questions, where SANS (not useful at high concentrations) and ESR (side reactions, low polarizability, slow timescale leading to observable rearrangements) fail.