Monday, October 15, 2012

Cosmetic Ingredients [ Part 1: Surfectants ]

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:
- Cleaning
- Foaming
- Emulsifying
- Opacifying
- Conditioning
- Moisturizing
- Preserving

Types of Surfactants:

- Anionic
- Cationic
- Amphoteric
- Non-Ionic

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)

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