Tea-Dodecylbenzenesulfonate

Tea-dodecylbenzenesulfonate is a synthetic surfactant — a type of cleansing agent that helps oil and water mix together. It belongs to a class of ingredients called anionic surfactants, which are negatively charged molecules designed to lift dirt, sebum, and other impurities from the skin's surface.In skincare products, it functions primarily as a cleanser and foaming agent, helping to create the lather and texture associated with face washes, body cleansers, and similar formulations. It appears in roughly 0.2% of skincare products.

Tea-dodecylbenzenesulfonate works by surrounding oil particles with its molecular structure, allowing them to be suspended in water and rinsed away. One end of the molecule attracts to oils whilst the other attracts to water, effectively bridging these two immiscible substances.This mechanism also produces the foaming action commonly associated with cleansers, as the ingredient stabilises tiny air bubbles within the product.

Use in rinse-off products as directed — typically once or twice daily depending on your skin type and the product's formulation. Always rinse thoroughly with water after use. If using a cleanser containing this ingredient, follow with a hydrating toner or moisturiser to support skin barrier health, particularly if you have dry or sensitive skin.

Tea-dodecylbenzenesulfonate is generally recognised as safe in cosmetic formulations at typical use levels. Some individuals with very sensitive skin may experience mild irritation, particularly if the product is not rinsed thoroughly or if used excessively.