What is the name given to the grease extracted from sheep's wool?

The grease extracted from sheep's wool is called lanolin. Lanolin is a natural, waxy substance that acts as a moisturizer and emollient, making it highly beneficial in various cosmetic and skincare products. Its ability to retain moisture and provide a protective barrier on the skin makes it particularly popular in formulations intended for dry or sensitive skin. This natural extract not only helps to maintain skin hydration but also has soothing properties, making it ideal for use in lotions, creams, and balms. Additionally, because lanolin is derived from wool, it retains its natural lipid structure, which is very similar to the lipids found in human skin, further enhancing its effectiveness.

Other substances mentioned, like stearic acid, beeswax, and cetyl alcohol, serve different functions in formulations, such as emulsifying agents or thickeners, but they do not share the same origin or properties as lanolin.