Article last updated: October 15, 2024
PEG-25 Phytostanol, also known by its chemical name (3-.beta.)-Sigmast-5-en-3-ol, ethoxylated (25 mol EO average molar ratio), is a cosmetic ingredient primarily used for its emulsifying properties. This means it helps blend water and oil-based ingredients, creating a stable and homogenous mixture. PEG-25 Phytostanol is derived from phytosterols, which are naturally occurring compounds found in plant cell membranes. These phytosterols are structurally similar to cholesterol and are often sourced from vegetable oils such as soybean or canola oil.
The journey of PEG-25 Phytostanol into the world of cosmetics began with the increasing demand for plant-based and biocompatible ingredients. Phytosterols have long been recognized for their beneficial properties in skincare, including their ability to reinforce the skin barrier and provide anti-inflammatory effects. By ethoxylating phytosterols, chemists were able to enhance their solubility and emulsifying capabilities, making them more versatile for use in various cosmetic formulations.
The production of PEG-25 Phytostanol involves a process called ethoxylation, where ethylene oxide is added to phytosterols. This reaction typically occurs under controlled conditions, allowing for the precise addition of 25 moles of ethylene oxide per mole of phytosterol. The result is a compound that retains the beneficial properties of phytosterols while gaining the ability to effectively emulsify and stabilize cosmetic products. This makes PEG-25 Phytostanol a valuable ingredient in creams, lotions, and other personal care items where a smooth and consistent texture is desired.
In this section, we will delve into the officially recognized cosmetic benefits and uses of PEG-25 Phytostanol:
PEG-25 Phytostanol is primarily used as an emulsifying agent in cosmetic formulations. This means it helps to mix water and oil-based ingredients, which typically do not blend well together. By doing so, it ensures that the product has a consistent texture and stability, preventing the ingredients from separating over time. This is particularly important in products like lotions, creams, and serums, where a smooth and uniform application is desired.
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-25 Phytostanol in cosmetic products, it is important to be aware of its safety, suitability, and allergenic potential. While this ingredient is generally considered safe for topical application, 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-25 Phytostanol 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 PEG-25 Phytostanol are relatively uncommon. However, as with any cosmetic ingredient, it is recommended to perform a patch test before widespread usage to ensure there are no adverse reactions.
In terms of comedogenicity, PEG-25 Phytostanol 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 or cause acne, making it suitable for individuals prone to blemishes or breakouts.
