Abstract
Important basic functions of a make-up remover are cleansing capability and a refreshing feel. However, there is no cleansing product that fills both functions at once because the key features obtained by conventional formulation techniques have been mutually exclusive. This problem was approached from an interfacial science perspective, focusing especially on the fact that a process of “adding water” exists between the “make-up removal” and “wash-off” process. In thehope of establishing the preferred system, phase diagrams with various constituents were studied. Consequently, an anomalous system was constructed in which a reversed micellar oil solution, suitable for “removing make-up”, inverts the structure, via oil and water continuous structures to a micellar solution which is suitable for “wash-off” by “addition of water”. The reversed micellar oil solution was applied to the novel cleansing oil formula having (1) excellent cleansing capability that is identical to that of a conventional oil formula, (2) a refreshing feel like that of a lotion type, with little residual oil base; unobtainable through conventional technologies. This high performance cleansing oil presents a novel concept that solves mutually exclusive events by using suitable aggregation structures for cleansing processes through extensive research of the phase behavior of oil cleansing formulae during the cleansing process.
