Polyglycerol polyricinoleate, also known as PGPR, is a food additive commonly used as an emulsifier in chocolate and other confectionery products. There are several synonyms for this chemical compound, including E476, glyceryl polyricinoleate, and polyglycerol esters of condensed castor oil fatty acids. Other related terms include polyglycerol esters, polyricinoleic acid glycerides, and castor oil ethoxylates. While these names may seem overwhelming, they all refer to the same compound that plays an important role in improving the texture and shelf-life of many food products. Understanding the various names and terms associated with PGPR can help consumers make informed decisions about the foods they eat.