Lanolin is a natural, waxy substance derived from the wool of sheep. It acts as a protective barrier for the sheep's skin and wool, helping to keep them moisturized and shielded from environmental elements. Lanolin is often collected during the wool shearing process and is refined for various uses. In cosmetics and skincare products, lanolin is valued for its emollient properties, making it effective in moisturizing and soothing dry skin. It is commonly found in lotions, creams, and lip balms, where it helps to lock in moisture and improve skin texture.