Sheep secrete a yellow wax from their sebaceous glands called lanolin. Lanolin helps waterproof the wool, as well as protect the sheep’s skin from infection. When sheep are sheared, lanolin is ...

Dermatitis. 2008;19(2):63-72. The fatty acid fraction of lanolin has also been implicated as a sensitizer, by Sulzberger and colleagues. In their previously mentioned study, they were successful ...