Good quality comes to start with; service is foremost; organization is cooperation' is our enterprise philosophy which is regularly observed and pursued by our firm for VP/VA copolymer solution, Povidone-Iodine solution, crospovidonum, PVP K15. Find famous brands' and efficient kollidon with Rainbow. Our factory also provides customized kollidon according to customers' requirement. And the free sample for quality checking is also available if you need.