According to Wikipedia, Surfactants are compounds that lower the surface tension of a liquid, the interfacial tension between two liquids, or that between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, and dispersants.
Surfactants are added to cosmetic products for the following purposes:
Types of Surfactants:
Examples of Surfactants:
- Cetyl or Stearyl alcohol
- Cetrimonium chloride and Stearalkonium Chloride
- Sodium Lauriminodipropionate and Disodium Lauroamphodiacetate.
- Amines, Alkylimidazolines, Alkoxylated Amines, and Quaternized Ammonium Compounds
- Sodium lauryl sulfate (SLS), ammonium lauryl sulfate (ALS), or their ethoxylated companions, sodium laureth sulfate (SLES)