Sodium Lauroyl Aspartate

Sodium lauroyl aspartate is an aspartic-acid-derived anionic surfactant from the mild amino-acid school of Japanese cleansing chemistry. It creates a creamy, low-irritation foam that respects the barrier and leaves skin supple after rinsing. At 5–15% it suits sensitive and dry skin in facial washes designed for daily use. Like its glutamate cousins it costs more than sulfate workhorses but earns it in comfort. A strong signal of a thoughtfully engineered cleanser — when you see aspartates or glutamates high in the list, the formulator chose skin feel over margin.