Steareth-30

Steareth-30 is a nonionic surfactant derived from stearic acid, a naturally occurring fatty acid. It is created through a process called ethoxylation, which adds ethylene oxide units to stearic acid to create a molecule that bridges both water-loving and oil-loving properties.In skincare formulations, steareth-30 serves multiple functions: it cleanses by breaking down oils and impurities, helps stabilise formulas by creating a gel-like consistency, and improves the spreadability and texture of products. Because it is a mild, nonionic surfactant, it is gentler than many anionic alternatives …

Steareth-30 works by reducing the surface tension between water and oil-based substances. Its molecular structure has one end that loves water and another that loves oil, allowing it to surround dirt and sebum particles and suspend them so they can be rinsed away. This emulsifying behaviour also helps the ingredient stabilise formulations that contain both water and oils, preventing them from separating.When used in gel-based cleansers and treatments, steareth-30 contributes to the gel matrix, giving the product its characteristic texture whilst maintaining its effectiveness as a mild clean…

Steareth-30 is typically found in cleansers and gel-based treatments where it contributes to both efficacy and texture. Use products containing this ingredient as directed on the label. If using a cleanser, massage gently over damp skin and rinse thoroughly with lukewarm water. Because it is a mild surfactant, it is suitable for daily use in most formulations, but always check the product instructions for recommended frequency.

Steareth-30 is generally well-tolerated and considered safe for cosmetic use by major regulatory bodies. It is suitable for sensitive skin, though as with any cleanser ingredient, discontinue use if irritation develops.