Lecithin

Lecithin is a naturally occurring phospholipid complex primarily extracted from soybeans or sunflower seeds, consisting mainly of phosphatidylcholine along with other phospholipids. Its unique amphiphilic structure, with both water-loving and oil-loving components, makes it an exceptional natural emulsifier that can form liposomes and lamellar structures, enhancing the delivery of active ingredients into skin. Formulators value lecithin not only for its emulsifying properties but also for its biomimetic nature—it closely resembles the lipids found in human cell membranes, making it particularly effective at improving skin barrier function and ingredient penetration.