Article last updated: October 15, 2024
Polyglyceryl-2 Sesquioleate, also known by its chemical name 1,2,3-Propanetriol, homopolymer, 9-(Z)-octadecenoates (2:3) (2 mol glycerol average molar ratio), is a versatile emulsifying agent commonly used in cosmetic formulations. This ingredient is derived from glycerol and oleic acid, both of which are naturally occurring substances. Glycerol, also known as glycerin, is a simple polyol compound, while oleic acid is a fatty acid found in various animal and vegetable fats and oils.
The use of Polyglyceryl-2 Sesquioleate in cosmetics has a relatively modern history. As the demand for more natural and skin-friendly ingredients grew, chemists began to explore the potential of polyglycerol esters. These compounds were found to be effective emulsifiers, capable of stabilizing mixtures of oil and water, which is essential for creating smooth and consistent cosmetic products. Over time, Polyglyceryl-2 Sesquioleate has become a popular choice due to its mildness and efficacy.
The manufacturing process of Polyglyceryl-2 Sesquioleate involves the polymerization of glycerol followed by esterification with oleic acid. This results in a compound that can effectively reduce the surface tension between different substances, allowing them to mix more easily. The average molar ratio of glycerol in this compound is 2, which means that for every two molecules of glycerol, there are three molecules of oleic acid. This specific ratio contributes to its unique emulsifying properties, making it a valuable ingredient in a wide range of cosmetic products.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Polyglyceryl-2 Sesquioleate:
Polyglyceryl-2 Sesquioleate is primarily used as an emulsifying agent in cosmetic formulations. This means it helps to blend water and oil-based ingredients together, creating a stable and uniform mixture. Without emulsifiers, products like creams, lotions, and serums would separate into their individual components, making them less effective and harder to apply. By ensuring a consistent texture, Polyglyceryl-2 Sesquioleate enhances the overall user experience, making products smoother and easier to spread on the skin.
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 Sesquioleate 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 effectively. However, like any cosmetic ingredient, it can have potential side effects for some individuals.
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Polyglyceryl-2 Sesquioleate during pregnancy are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice before using products containing this ingredient.
Adverse reactions to Polyglyceryl-2 Sesquioleate are relatively uncommon. However, as with any new skincare product, it is recommended to conduct a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, Polyglyceryl-2 Sesquioleate is rated as a 1 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This low rating indicates that it is unlikely to clog pores, making it generally suitable for people prone to acne, blemishes, or breakouts.
