Namely
This hydrogenated and ethoxylated castor oil is in the form of a slightly perfumed viscous liquid. It is used in cosmetics as an emulsifier, solubilizer or surfactant. The ingredient is produced, as you can imagine, from a PEG-40 (40 moles of ethylene oxide) and natural castor oil.
Studies show that this ingredient does not pose any real problems in itself, it is especially ethoxylation manufacturing processes that lead to possible impurities that are problematic for human health are shown finger.