Disoyamines (chemical: di-soya-alkylamines, alkamines from fatty acids of soybean oil) are used in cosmetics. The substance acts as an emulsifier (changes the interfacial tension of liquids like water and oil so that they can be mixed together), hair conditioner (makes the hair easy to comb, smooth, soft and shiny and gives it volume) and antistatic agent (reduces static charges by neutralizing the electric charge on the surface of e.g. hair).