Lecithin is widely used in the food industry as an emulsifier, helping to blend ingredients that typically separate, such as oil and water. It is commonly found in products like chocolate, margarine, and salad dressings to improve texture and stability. In baking, it enhances dough elasticity and extends shelf life.

In the pharmaceutical and cosmetic industries, lecithin acts as a moisturizer and emulsifier in creams, lotions, and ointments, improving skin hydration and product consistency. It is also used in dietary supplements to support brain health and liver function due to its choline content.

Additionally, lecithin is utilized in industrial applications as a release agent in mold manufacturing and as a dispersing agent in paints and coatings. Its versatility makes it a valuable component across various sectors.