Article last updated: October 15, 2024
PEG-20-PPG-10 Glyceryl Stearate, also known by its more technical name 1,2,3-Propanetriol, monooctadecanoate, ethoxylated, propoxylated (20 mol EO, 10 mol PO average molar ratio), is a synthetic compound widely used in the cosmetic industry. This ingredient is primarily sourced from glycerin and stearic acid, which are then chemically modified through processes called ethoxylation and propoxylation. These processes involve adding ethylene oxide and propylene oxide molecules to the base compound, resulting in a versatile emulsifying agent.
The history of PEG-20-PPG-10 Glyceryl Stearate in cosmetics dates back to the mid-20th century when the demand for more stable and effective emulsifiers began to rise. As cosmetic formulations became more complex, the need for ingredients that could seamlessly blend oil and water phases became crucial. PEG-20-PPG-10 Glyceryl Stearate emerged as a reliable solution, offering excellent emulsifying properties that help maintain the consistency and stability of various cosmetic products.
The production of PEG-20-PPG-10 Glyceryl Stearate involves a multi-step chemical process. Initially, glycerin and stearic acid are combined to form glyceryl stearate. This compound is then subjected to ethoxylation, where ethylene oxide is added, followed by propoxylation, where propylene oxide is introduced. The result is a compound with an average molar ratio of 20 moles of ethylene oxide to 10 moles of propylene oxide, giving it the unique properties that make it so valuable in cosmetic formulations.
In this section, we will delve into the officially recognized cosmetic benefits and uses of PEG-20-PPG-10 Glyceryl Stearate:
PEG-20-PPG-10 Glyceryl Stearate is primarily used as an emulsifying agent in cosmetic formulations. This means it helps to blend water and oil components together, creating a stable and homogenous mixture. Without emulsifiers, products like lotions and creams would separate into their oil and water components, making them less effective and less pleasant to use. By ensuring a consistent texture, this ingredient enhances the overall user experience and effectiveness of the product.
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).
When considering the use of PEG-20-PPG-10 Glyceryl Stearate in cosmetic products, it is important to be aware of its safety, suitability, and allergenic potential. While this ingredient is generally considered safe for use in cosmetics, there are some potential side effects to be mindful of:
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of PEG-20-PPG-10 Glyceryl Stearate during pregnancy and breastfeeding 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 PEG-20-PPG-10 Glyceryl Stearate are relatively uncommon. However, as with any cosmetic ingredient, it is recommended to perform a patch test before widespread use to ensure there are no adverse reactions.
In terms of comedogenicity, PEG-20-PPG-10 Glyceryl Stearate has a rating of 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 and cause acne or breakouts, making it generally suitable for individuals prone to blemishes.
