Lanolin

Lanolin

Crude lanolin

Lanolin, also known as wool wax or wool grease, is a yellow waxy substance secreted by the sebaceous glands of wool-bearing animals. It is commonly used in the production of skin care products due to its emollient properties.

Composition

Lanolin is a complex mixture of esters, fatty acids, and alcohols. It is primarily composed of long-chain waxy esters, which are responsible for its protective and moisturizing properties. The composition of lanolin can vary depending on the breed of sheep and the method of extraction.

Extraction and Processing

Lanolin is extracted from the wool of sheep after shearing. The wool is washed to remove impurities, and the lanolin is separated from the wool fibers. The crude lanolin is then refined to remove any residual impurities and to adjust its properties for specific applications.

Uses

Lanolin is widely used in the cosmetics and pharmaceutical industries. It is a key ingredient in many moisturizers, lip balms, and ointments due to its ability to form a protective barrier on the skin and retain moisture. Lanolin is also used in lubricants, rust-preventive coatings, and shoe polish.

Allergies and Sensitivities

While lanolin is generally considered safe for use in skin care products, some individuals may experience allergic reactions or sensitivities. These reactions are typically due to impurities in the lanolin or individual sensitivity to its components.

Related pages

• Sebaceous gland
• Moisturizer
• Cosmetic chemistry