Polyvinylpyrrolidone, abbreviated PVP is an off-white powder used as an anti-caking agent in food supplements. It makes tablets stick together and retains added flavours and aromas.
The substance is a polymer, which means a very large molecule made up of long chains of many similar building blocks. Polyvinylpyrrolidone is not absorbed from the intestine but passes unchanged. Therefore, the substance has no quantity limitation. It has the E-Number 1201.