Mink oil comes from a cute animal called a mink. They are like furry weasels that live in the wild. Farmers also raise them for their soft fur.
To make mink oil, people take the fat from the minks and heat it up until it turns into a liquid. The liquid is then cooled down and put into a container.
Mink oil is used for lots of things like making leather boots and shoes softer and more comfortable to wear. It can also be put on your skin to make it feel soft and smooth. Some people even use it to help heal dry or cracked skin.
So, mink oil might be a little bit yucky to some people because it comes from an animal, but it has lots of helpful uses too!