<p>Ear wax which often obstructs the external auditory meatus of the ear contains less than 50% of fatty matter derived from secretions of the sebaceous ceruminous glands. The majority of the wax consists of desquamated epithelium, foreign matter and shed hairs. This non-fatty material forms a matrix holding together the granules of fatty matter to form the ceruminous mass. The addition of oils or solvents binds the mass more firmly together, but aqueous solutions, if they are able to penetrate the matrix, cause a disintegration of the ceruminous mass. Docusate Sodium ear drops, because of their low surface tension and miscibility, rapidly penetrate the dry matrix of the ceruminous mass, reducing the solid ear wax to a semi-solid debris.</p>