Tangerine Oil (Citrus reticulata) 10ml is a natural tonic for the stomach and liver, it is an oil that can help with the digestive system, reducing fluid retention, soothing the nervous system and as a skin tonic. A gentle oil for children. NOTE: May cause irritation to sensitive skin. Pure essential oils can be used as essences in the bath or in vaporisers. They can also be used to make up your own massage blends having first diluted them in HealthAid massage oil base or lotion base.