ABSTRACT
Amphoteric surfactants comprise a broad range of compounds, which display nonionic, cationic, or even anionic tendencies depending on pH or in-use conditions. Betaines, imadazoline-derived amphoacetates, alkylamino propionates, and glycinates are generally included in this category. Amine oxides, which may exhibit nonionic or cationic characteristics depending on pH conditions, are also included in this category.
