Cholesterol and cholesterol acetate are important ingredients in cosmetics.

Cholesterol, a naturally occurring lipid in the skin, plays a key role in the skin's barrier function. It helps the skin retain moisture, maintains suppleness and elasticity, and reduces environmental irritation. Adding an appropriate amount of cholesterol to cosmetics can enhance moisturizing properties and improve dryness and roughness, making it particularly suitable for dry skin.

Cholesterol acetate, a derivative of cholesterol, offers improved stability and skin permeability. In cosmetics, it acts as an emulsifier and conditioning agent, helping to form a stable emulsion while also imparting a soft, smooth feel to the skin, enhancing the user experience. It is commonly used in various skincare products, including creams, lotions, and serums.