Sodium Lauroyl Methylaminopropionate

Sodium lauroyl methylaminopropionate is a synthetic surfactant derived from lauric acid, a fatty acid commonly found in coconut and palm oils. It belongs to the aminopropionate class of surfactants, which are designed to be gentler than traditional sulphate-based cleaners.In skincare formulations, it functions primarily as a cleansing agent and emulsifier, helping to remove oil and impurities from the skin whilst also stabilising the blend of water and oil-based ingredients in products.

Surfactants are molecules with one end that attracts water and another that attracts oil. This dual nature allows them to surround oil droplets on the skin, suspending them so they can be rinsed away with water.Sodium lauroyl methylaminopropionate achieves this through a gentler molecular structure than harsher alternatives, which means it can cleanse effectively whilst minimising disruption to the skin's natural lipid barrier.

This ingredient is typically found in cleansers and micellar waters rather than leave-on treatments. Use as directed on the product label—usually once or twice daily depending on skin type and the specific formulation. Rinse thoroughly after use if it is a rinse-off product.

Generally well-tolerated and recognised as safe in cosmetic products. Rare cases of sensitivity have been reported; discontinue if irritation develops.