Mink oil is made from the thick fatty layer minks have just under their skins. This fat is removed from the pelt when the mink is skinned and is then rendered into mink oil. Mink oil is very close to human skin oil and is used in several medical and cosmetic products as a result. Mink oil is also favored for treating and preserving leather. minks are rodents Categories: Rodents ... Modern leather-making tools Leather is a material created through the tanning of hides, pelts and skins of animals, primarily cows. ...