CERUMENEX Eardrops contain triethanolamine Polypeptide Oleate-Condensate (10%). Inactive Ingredients: Chlorobutanol 0.5%, Propylene Glycol and Water. Triethanolamine Polypeptide Oleate is a hygroscopic-miscible solution with low surface tension and optimal viscosity of 50-90 cps. It also has a slightly acid pH range (5.0-6.0) to approximate the surface of a normal ear canal.