Lanolin (CAS 8006-54-0) is a light yellow or brownish-yellow ointment; it is sticky and slippery; it smells weak and peculiar. It is easily soluble in chloroform or ether, soluble in hot ethanol, and very slightly soluble in ethanol. Lanolin is a natural substance secreted by the sebaceous glands of sheep. The main component is esters produced by sterols, fatty alcohols and triterpene alcohols and approximately the same amount of fatty acids, accounting for about 95%, and it also contains free alcohol 4%. , And a small amount of free fatty acids and hydrocarbons.

Cosmetic grade lanolin can be used in cold cream, anti-wrinkle cream, anti-cracking cream, shampoo, conditioner, hair cream, lipstick and high-grade soap. Lanolin is often used as a water-in-oil emulsifier and is an excellent moisturizing substance. Lanolin softens and restores dry or rough skin due to lack of natural moisture. Lanolin maintains the usual moisture content of the skin by delaying, rather than completely preventing moisture from penetrating through the epidermal layer.