Cleans. Rinses. Disinfects. Stores. Removes Protein. Complete® brand Multi-Purpose Solution is a sterile, isotonic, buffered, solution containing hydroxypropyl methylcellulose as a lubricant, preserved with polyhexamethylene biguanide 0.0001%, a phosphate buffer, Poloxamer 237 as a surfactant, edetate disodium as a chelating agent, sodium chloride, potassium chloride, and purified water. Contains no chlorhexidine or thimerosal.