American mink

An oil called mink oil is made from the fat layer under the mink's skin.

An excerpt from the article 19 facts about American mink

It is a source of palmitoleic acid, which has properties similar to human sebum. For this reason, it is used in cosmetics and medical products. It is also used to preserve various types of leather. Mink oil is resistant to UVA and UVB ultraviolet radiation, does not cause allergies does not turn rancid, and is used for the production of perfumes and soaps.