One of the main uses for this polymer back in the 1950's was hair spray. Yum yum!!
The Fisher Scientific web site provides an MSDS
(Material Data Safety Sheet) for polyvinylprrolidone and states the following:
"Potential Health Effects:
Eye: May cause eye irritation.
Skin: May cause skin irritation.
Ingestion: May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.