Laureth-5 Carboxylic Acid

Laureth-5 Carboxylic Acid is a synthetic surfactant derived from lauric acid, a fatty acid found naturally in coconut and palm oils. It belongs to the polyethylene glycol (PEG) family of ingredients and functions as both a cleansing agent and emulsifier in skincare products.In formulations, it helps remove oil and impurities from the skin surface while also helping to blend water and oil-based components together, creating stable, uniform products.

Surfactants like Laureth-5 Carboxylic Acid have a unique molecular structure with one end that attracts water and another that attracts oil. This allows them to surround dirt and sebum, suspending them so they rinse away cleanly with water.In product formulations, this ingredient acts as an emulsifier by positioning itself at the boundary between oil and water phases, allowing them to mix smoothly rather than separate.

This ingredient is typically found in cleansers, micellar waters, and emulsified serums rather than leave-on products. Use as directed by the specific product formulation. If using a cleanser containing this ingredient twice daily, ensure you follow with appropriate hydration and moisturisation, especially if you have dry or sensitive skin.

Laureth-5 Carboxylic Acid is generally well-tolerated and is considered a mild surfactant suitable for most skin types. Those with significant sensitivity may wish to patch test, as with any cleansing ingredient.