表面活性剂和脂质是化妆品中的重要成分


Non-ionic surfactant, an essential component in cosmetics


Cosmetic science is not a subject typically covered in an undergraduate chemistry program, but it is the basis of an entire industry in which many chemistry graduates find themselves working. This review will introduce the basic technology and ingredients used by cosmetic formulators to create functional products.

The definitions for cosmetics differ slightly around the world, but they are basically any substance or mixture that is intended to be applied to the external parts of the human body or the teeth and mucous membranes for the purposes of improving the appearance. In the United States, cosmetics are regulated by the Food and Drug Administration, which defines cosmetics as “articles intended to be rubbed, poured, sprinkled, or sprayed on, introduced into, or otherwise applied to the human body . . . for cleansing, beautifying, promoting attractiveness, or altering the appearance”


Ingredients in cosmetics

There are a number of ways to discuss the ingredients used to make cosmetics, but focusing on their primary purpose for being in the formula makes the most sense. This isn't perfect, since some ingredients have multiple functions, but it provides a good framework for the discussion. Basically, there are three reasons to use an ingredient in a formula: functionality, aesthetics, and marketing.

Functional ingredients provide the primary benefit to consumers who use the product. These are the ingredients that clean the skin, condition hair, and provide moisturization or even color. They are also the so-called active ingredients that make over-the-counter (OTC) drugs work.

The problem with many functional

ingredients is that they do not feel nice or apply well on their own. They may even smell bad.  Aesthetic ingredients are technologies that make formulas look and feel better; they improve the overall experience of using cosmetics.

Marketing ingredients are ingredients that are not expected to do anything in the formulation but are added specifically to help support the marketing story. Such ingredients are important, since they often provide the entire reason for purchasing a product, but they are not actually expected to have a significant impact on the formula’s performance. For example, consumers prefer to buy moisturizing products with aloe vera rather than petrolatum—even though the latter is the ingredient that actually provides the benefit. Marketing ingredients are not the focus of this review, but it is important to know how they are used.

The cosmetic ingredients that have the most impact on the way cosmetics work are the functional ingredients. These include:

· surfactants,

· conditioners/moisturizers,

· colorants,

· polymers, and

· active ingredients.


polyglycerol  polyglyceryl  polyglycerol ester fatty acid   surfactant   cosmetic raw material

Polyglyceryl-2 Triisostearate, Polyglyceryl-3 Diisostearate, Polyglyceryl-6 stearate, Polyglyceryl oleate etc... can be used as excellent surfactants.