The word of the day is lanolin:

< Latin lāna wool + ol-eum oil + -in suffix¹. Named by O. Liebreich.

Chem.

 

  The cholesterin-fatty matter extracted from sheep's wool, used as a basis for ointments. (OED)

"Now the sun burns
unprotected skin.
Now the sheep dream
of lanolin."

 - Maureen N. McLane, "Another Day in This Here Cosmos", 31 January 2011 The New Yorker