Article last updated: October 15, 2024
Polyglyceryl-2 Tetrastearate, also known by its chemical name 1,2,3-Propanetriol, homopolymer, octadecanoates (1:4) (2 mol glycerol average molar ratio), is a synthetic compound commonly used in the cosmetic industry. This ingredient is primarily derived from glycerol and stearic acid, both of which are naturally occurring substances. Glycerol, also known as glycerin, is a simple polyol compound, while stearic acid is a saturated fatty acid typically sourced from animal fats or vegetable oils.
The use of Polyglyceryl-2 Tetrastearate in cosmetics has a relatively recent history, emerging as a response to the growing demand for more stable and effective emulsifiers. Emulsifiers are crucial in cosmetic formulations as they help blend water and oil components, ensuring a consistent and smooth texture. This ingredient gained popularity due to its ability to create stable emulsions, which are essential for products like lotions, creams, and other skincare items.
The manufacturing process of Polyglyceryl-2 Tetrastearate involves the polymerization of glycerol followed by esterification with stearic acid. This process results in a compound that can effectively reduce the surface tension between oil and water, allowing them to mix more easily. The “2” in Polyglyceryl-2 Tetrastearate indicates the average number of glycerol units in the polymer chain, which influences its emulsifying properties.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Polyglyceryl-2 Tetrastearate:
Polyglyceryl-2 Tetrastearate 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 like Polyglyceryl-2 Tetrastearate, products like lotions and creams would separate into their individual components, making them less effective and less appealing to use. In simpler terms, it ensures that your favorite moisturizer or sunscreen has a smooth, consistent texture, enhancing the overall user experience.
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 Tetrastearate 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, like any cosmetic ingredient, it may cause side effects in some individuals.
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Polyglyceryl-2 Tetrastearate 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.
Side effects and adverse reactions to Polyglyceryl-2 Tetrastearate are relatively uncommon. However, it is always a good practice to conduct a patch test before widespread usage to ensure that the ingredient does not cause any adverse reactions.
Polyglyceryl-2 Tetrastearate has a comedogenic rating of 1, which means it is considered to be minimally comedogenic. This low rating indicates that it is unlikely to clog pores or cause acne, making it suitable for individuals prone to blemishes and breakouts.
