lanolin

chemical compound
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://www.britannica.com/science/lanolin
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

Also known as: anhydrous lanolin, wool fat, wool grease, wool wax
Related Topics:
wax

lanolin, purified form of wool grease or wool wax (sometimes erroneously called wool fat), used either alone or with soft paraffin or lard or other fat as a base for ointments, emollients, skin foods, salves, superfatted soaps, and fur dressing. Lanolin, a translucent, yellowish-white, soft, unctuous, tenacious substance, is readily absorbed by the skin and thus makes an ideal base for medicinal products intended to be absorbed.

Lanolin is obtained from raw wool by kneading it in water, or by scouring with soap solution, and then centrifuging. The wool grease so obtained is refined, bleached, deodorized, and dried.

Chemically, lanolin consists of a mixture of several sterols, fatty acids, and their esters.