ABSTRACT
Surfactants for cosmetic use may be grouped into the following six categories: cleaning agents, emulsifying agents, foam boosters, hydrotropes, solubilizing agents, and suspending agents [1]. Most cosmetic products are formulated through the use of these surfactants as main ingredients. This section briefly surveys major surfactants for shampoos and rinses presently on the Japanese market. Basic solution properties of surfactants are then discussed.
