The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.

A vegetable oil derived from the seeds of the castor bean plant, castor oil is also known as Ricinus communis. The main active component of castor oil is ricinoleic acid, a type of fatty acid shown to ...

Castor oil is sourced from the seeds of the Ricinus communis plant, more commonly referred to as the castor bean or castor oil plant. The seeds go through a heating process to remove the toxic enzyme ...

Irritant contact dermatitis (ICD) from plants is a very common phenomenon as potentially irritant plants and plant products are commonly found in the everyday environment, including the home ...