Back to Ingredient Dictionary

PEG-25 SOY STEROL

Description

PEG-25 Soy Sterol is a multifunctional ingredient derived from soybean oil, widely used in skincare formulations. This water-soluble compound acts as an emollient and emulsifier, effectively combining oil and water-based components in cosmetic products. Its primary function is to enhance the skin's moisture retention capabilities, promoting a smoother, more hydrated complexion.

The ingredient's structure consists of polyethylene glycol (PEG) attached to soy-derived sterols, creating a molecule that can interact with both hydrophilic and lipophilic substances. This unique characteristic allows PEG-25 Soy Sterol to form stable emulsions and improve the overall texture of skincare products. Additionally, it helps to deliver active ingredients more efficiently into the skin.

PEG-25 Soy Sterol exhibits moisturizing properties similar to cholesterol, a natural component of the skin's lipid barrier. This similarity allows it to integrate seamlessly with the skin's structure, supporting barrier function and reducing transepidermal water loss. The ingredient is generally well-tolerated by most skin types and is particularly beneficial in formulations designed for dry or mature skin.