The cosmetic industry is dynamic; it never remains stationary. As our society changes, the industry, the products as well as the ways by which the industry positions and markets their products also change. Some of these changes are created by internal factors such as competition and new innovations. However, many of the changes are also brought about by the pressure and new needs created by a changing society.
One external factor which has become very important to our society and our industry is the issue of environmental concern. Since the end of the 1980's, not only the American public, but people all over the world have shown increasing concern over environmental pollution and governments have been urged to take strong actions to solve the problem.
Compared to other chemical industries, the cosmetic industry is not a heavily-polluter. However, we are not completely blameless. Chlorofluorocarbons used in hair sprays in the past have been blamed for destroying ozone in the stratosphere and plastic bottles used in cosmetics and toiletries have contributed to the non-biodegradable solid waste mass. Recent action by the California Air Resource Board to regulate the concentrations of ethanol in hair sprays and in eau de colognes is an example of how pollution-control laws are being used to regulate cosmetic products.
Furthermore, it is important to remember that as consumers become more environment-conscious, it becomes increasingly likely that their purchases will be influenced by their perception of how cosmetic companies are handling the environmental issue. For this reason, many manufacturers have embraced environmental themes and have positioned their products to appeal to today's environmentally-conscious consumers.

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The separation of cationic surfactants was examined by reversed-phase high-performance liquid chromatography (HPLC) using octadecyl-silica (Capcell pack C18; 5um) as a column packing.
Alkyl (C16-C18) benzyldimethylammonium chlorides, alkyl (C16-C18) trimethylammonium chlorides, cetyl pyridinium chloride, benzethonium chloride and distearyldimethylam monium chloride (ZSZMA) were used as the quaternary salts. POE (n=2) stearylamine was used as the aliphatic amine.
The optimum conditions for the separation of ZSZMA were as follows: column size, 4.6mm i.d. 15cm; eluent, water-ethanol (20: 80vol/vol) containing 0.1M sodium perchlorate adjusted pH to 2.5 with phosphoric acid; column temp., 50C; detector, Refractive index detector.
Another optimum conditions for the separation of cationic surfactants except ZSZMA were as follows: eluent, water-ethanol (40: 60vol/vol) containing 0.1M sodium perchlorate adjusted pH to 2.5 with phosphoric acid; column size, column temp. and detector were the same as previous conditions.
Typical cationic surfactants in shampoos and rinses were clearly resolved and determined directly without any pretreatment by using two mobile phase conditions.

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The control of the diameter and the shape of pigment during the process of preparation by using W/O emulsion has been attempted in order to increase dispersing and tinting abilities of the pigments. The pigment was prepared by reacting an acid dye with multinuclear aluminum said within the aqueous phase of a W/O emulsion which was prepared by using a nonionic surfactant. The diameter of the pigment was less than 0.5μm. The diameter of spherical particles could be controlled by varying the concentrations of surfactant within the W/O emulsions. Due to the presence of a surfactant on the surface of pigment, the prepared pigments exhibited excellent dispersing ability. An investigation of the formation mechanism of the spherical pigments revealed that the diameter of the pigment was related to the concentration of the pigment in the W/O emulsion as well as the diameter of water droplets in the W/O emulsion.

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