MONOPOL PEG4000 is compatible with most of organic solvents, and has excellent water solubility and effective as a non-volatile solvent because of its high boiling point. MONOPOL PEG4000 has a rigid solid. Every PEG type surfactants has excellent hydroscopic properties and this is controllable by adjusting the degree of condensation. As the degree of condensation increases, the hydroscopic properties is decreased. MONOPOL PEG4000 is characterized by less toxicity and less skin contact with skin or lips.