Wool fat

Wool Fat also known as Lanolin, is a wax secreted by the sebaceous glands of wool-bearing animals, most notably sheep. It is used widely in both the pharmaceutical and cosmetic industries due to its emollient properties.

History

The use of wool fat dates back to ancient times, where it was used by Egyptians for its moisturizing properties. In the modern era, it was first isolated in the mid-18th century by chemists who recognized its potential in various applications.

Production

Wool fat is obtained from the wool of sheep. After shearing, the wool is washed in hot water, a process that causes the lanolin to separate from the wool. The lanolin is then purified for use in various products.

Properties

Wool fat is a complex mixture of esters, diesters, and hydroxyesters of lanolin alcohols and lanolin acids. It is a yellow to brownish-yellow, viscous substance that is insoluble in water but soluble in organic solvents. It has excellent emollient properties, which makes it useful in skincare products.

Uses

Wool fat is used in a variety of products, including cosmetics, pharmaceuticals, and industrial applications. In cosmetics, it is used as a moisturizer and emollient in creams, lotions, and lip balms. In pharmaceuticals, it is used as a base for ointments and as a lubricant in eye drops. In industrial applications, it is used as a rust preventative and a lubricant.

Safety

While wool fat is generally considered safe for use, some people may experience allergic reactions to it. Symptoms of an allergic reaction can include redness, itching, and swelling.

See Also

• Sheep
• Wool
• Cosmetics
• Pharmaceuticals