Article last updated: October 15, 2024
Polyglyceryl-2 Triisostearate, also known by its chemical name 1,2,3-Propanetriol, homopolymer, isooctadecanoates (1:3) (2 mol glycerol average molar ratio), is a versatile ingredient commonly found in cosmetic products. This compound is primarily derived from glycerol and isostearic acid, making it a synthetic ester. It is also referred to as a polyglycerol ester, which indicates that it is formed by the esterification of glycerol with fatty acids.
The history of Polyglyceryl-2 Triisostearate in cosmetics is relatively recent, emerging as a response to the growing demand for more effective and skin-friendly emulsifiers. Emulsifiers are crucial in cosmetics as they help blend water and oil-based ingredients, ensuring a stable and homogenous product. Over the years, advancements in cosmetic chemistry have led to the development of more sophisticated and multifunctional emulsifiers like Polyglyceryl-2 Triisostearate.
The production process of Polyglyceryl-2 Triisostearate involves the polymerization of glycerol followed by esterification with isostearic acid. This results in a molecule that can effectively reduce the surface tension between different substances, making it an excellent emulsifying agent. The “2” in Polyglyceryl-2 indicates the average number of glycerol units in the polymer chain, while “Triisostearate” signifies the three isostearic acid molecules attached to the glycerol backbone. This specific structure allows it to create stable emulsions, which is why it is highly valued in the formulation of various cosmetic products.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Polyglyceryl-2 Triisostearate:
Polyglyceryl-2 Triisostearate is primarily used as an emulsifying agent in cosmetic formulations. This means it helps to blend water and oil components together, which are typically immiscible. In simpler terms, it ensures that the ingredients in your favorite lotion or cream mix well and stay mixed, providing a consistent texture and performance. Without emulsifiers like Polyglyceryl-2 Triisostearate, products could separate into their oil and water components, making them less effective and less pleasant to use.
Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
Polyglyceryl-2 Triisostearate is generally considered safe for use in cosmetic products. It is known for its emulsifying properties, which help to blend oil and water-based ingredients. However, as with any cosmetic ingredient, there are potential side effects to be aware of:
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Polyglyceryl-2 Triisostearate during pregnancy are lacking. Therefore, it is advisable for pregnant or breastfeeding women to consult a healthcare professional for further advice before using products containing this ingredient.
Adverse reactions to Polyglyceryl-2 Triisostearate are relatively uncommon. However, it is always recommended to perform a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, Polyglyceryl-2 Triisostearate has a low rating, typically around 1 on a scale of 0 to 5. This means it is unlikely to clog pores and is generally suitable for individuals prone to acne, blemishes, or breakouts.
