Medicinal

The Tangerine oil tones and regulates the digestive system. It helps increasing blood circulation and reduces fluid retention in the body.

Beauty and Perfumery

The Tangerine oil helps the skin to get rid of stretch marks and help skin regeneration post elimination of fluid retained in the body, earlier. It is often used in soaps, cosmetics, and perfumes, especially colognes. 

It is occasionally employed as a flavoring agent especially in confectionery, soft drinks and liqueurs.

FYI please:

Tangerine oil does contain Limonene, which may suggest its use in household cleaners.