Mandarines

Mandarine peel is used in the production of mandarine oil, which has a wide range of therapeutic uses.

An excerpt from the article 15 facts about mandarines
It has a calming effect and reduces stress and anxiety. It also aids with sleeping disorders. The oil can also be obtained from the plant's leaves. Although it is primarily used in the food industry, it is also used as an addition to cosmetics and perfumes.