. . . "In addition to solvents like water and lower aliphatic alcohols, e.g. ethanol, propanol and isopropanol or glycols such as glycerin and 1,2-propylene glycol, conventional additions in solutions, creams, emulsions or gels are also wetting agents or emulsifiers from the classes of anionic, cationic, amphoteric or nonionogenic surface-active substances such as fatty alcohol sulfates, alkylbenzenesulf" . .