Back to Ingredient Dictionary

STEARETH-25

Description

Steareth-25 is a versatile synthetic emulsifier and surfactant widely used in cosmetic and personal care formulations. This nonionic compound is derived from ethoxylated stearyl alcohol, with an average of 25 ethylene oxide units per molecule. Its chemical structure allows it to effectively bridge the gap between oil and water phases, making it invaluable in creating stable emulsions.

In skincare products, Steareth-25 functions as an emollient and thickening agent, contributing to improved texture and spreadability. Its molecular composition enables it to form a protective film on the skin, helping to reduce transepidermal water loss and enhance moisturization. This ingredient is particularly useful in leave-on formulations such as creams, lotions, and sunscreens.

Steareth-25 exhibits excellent compatibility with a wide range of cosmetic ingredients, including both natural and synthetic compounds. It is known for its ability to solubilize fragrances and essential oils, enhancing their dispersion in aqueous systems. The ingredient's mild nature makes it suitable for use in products designed for sensitive skin. Additionally, Steareth-25 aids in the stabilization of oil-in-water emulsions, contributing to extended shelf life and improved product performance.