Polyvinylpyrrolidone
PVP,
Povidone
Formula: C6H9NO
Molecular Weight: 111.140
Cas No:9003-39-8
Antistatic; Binding agent; Emulsion Stabilizer; Film-forming agent; Hair Fixing; Viscosity Controlling, often used as an additive in waterproof products, it is less greasy. Compared with PVA, PVP has a harder texture after drying.

(C6H9NO)n
2,500 – 2,500,000 g·mol
Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer made from the monomer N-vinylpyrrolidone.
聚乙烯吡咯烷酮(PVP),通常也稱為聚維酮或聚維酮,是由單體N-乙烯基吡咯烷酮製成的水溶性聚合物。
https://en.wikipedia.org/wiki/Polyvinylpyrrolidone
Product contain this ingredient