Castor Oil – Ricinus communis –  is obtained by pressing the seeds of the castor plant.
 
A colorless to very pale yellow liquid with a distinct taste and odor. 
For purposes of Aromatherapy and other product manufacturing, a refined (USP) or pure pale pressed variety is more suitable. It is mostly composed of triglycerides and fatty chain acids (up to 90%) including ricinoleate, and linoleates.  This makes it one of the most stable and useful oils for cosmetics, soaps and other therapies as it is resistant to heat and oxidization. Strong emollient properties and pulling action make it an excellent oil for use when heat combined with compresses are required.
 
Country of origin: India
Shelf Life : 2-3 years
Grade: USP
Aroma: Very slight and NOT characteristic of unrefined
Viscosity: Very thick 
 
Cautions / Safety Data
Avoid use during pregnancy. May irritate skin. Do not use on the skin full strength. Always dilute in appropriate carriers before use. Not for internal use. If pregnant or suffering from serious medical conditions, consult a qualified health professional, experienced in the use of essential oils.
 
Disclaimer
Essential oils are not meant to be a replacement for traditional medical treatment of diseases and conditions. When in doubt, please consult a physician.