Abstract: Stable, clear, antiperspirant microemulsions containing cosmetic oils, antiperspirant salts, and water and combinations of cationic quaternary ammonium salt are provided. These microemulsions can be used in different types of applicators such as roll-on, sponge, mousse, pad, brush, gel and aerosol or non-aerosol spray applicators.

Abstract: Structured, antiperspirant microemulsions possibly in the form of liquid crystals, containing cosmetic oils, a solution of antiperspirant salt in a hydrophilic solvent, a surfactant and an oil structurant are provided. These microemulsions can be used in different types of Solid applicators such as soft solid and, particularly desirably, firm stick applicators. The structured microemulsions are preferably clear by virtue of a suitable choice of oil, solvent and structurant.

Abstract: The invention relates to hair care compositions which comprise liposomes that contain 19-methyleicosanoic acid (19-MEA), an emulsion that contains 19 MEA, and a dispersion of liposomes containing 19-MEA in an emulsion. More specifically, we have now found that liposomes or nonionic surfactant vesicles (nsv's or NSV's) can be formed which are storage-stable and possess an affinity for hair. When included in a hair treatment composition, these liposomes deposit on the hair and some liposomes or liposomal fragments remain on the hair during rinsing or if not rinsed-off, such as, with a leave-on composition, and enhance the deposition on the hair of active ingredient 19-MEA with which they are combined.