Detergents are surfactants (surface-active-agents), which can change the properties of water. They can lower water's suface tension, making it better able to interact with other cleaning agents. They can also add foaming ability. There's no difference between the detergents in your household cleansers and those you use in your bath. It's simply a matter of concentration. Nevertheless, even among detergents, there's a wide variation in both effectiveness and ecological impact. Those based on plants are kinder to the body and environment than those based on petroleum.
Substances which are added to cosmetic products to lower the surface tension as well as to aid the even distribution of the cosmetic product upon application.
Are surface-active agents that are used in all foaming products they are capable of emulsifying oils and holding dirt in a suspension so that they can be rinsed away with water. Surfactants are used in cosmetic preparations to allow lotions and cosmetic liquids to spread out quickly and evenly on the skin. A serious implication with anionic (negatively charged) surfactants is that they may be contaminated with NDELA, a potent carcinogen. The levels at which they are absorbed into the body is much greater than eating nitrate contaminated foods such as bacon, ham etc.