What is pangolin oil used for?

Excuse me, could you please elaborate on the purpose and usage of pangolin oil? I've heard it mentioned in various contexts but I'm still unclear about its specific applications and why it's sought after. Is it primarily used for medicinal or cosmetic purposes? Are there any cultural or traditional beliefs surrounding its use? Additionally, are there any concerns or ethical issues surrounding the extraction and trade of pangolin oil that I should be aware of?