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Main Products
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PVP-I,pvpi, PVP Iodine manufacturer / supplier in China,... -
Medical Material, CAS 25086-89-9, Vinyl Acetate... -
Povidone-Iodine solution (SUNVIDONE ® PIs) Synonyms:...
About Us
Professional Povidone Manufacturer
Hangzhou Rainbow Import & Export Co., Ltd. is a trusted manufacturer and global supplier specializing in Povidone-based materials for the pharmaceutical, cosmetic, personal care, and industrial sectors. Backed by decades of industry expertise, we offer a complete portfolio of Povidone (PVP), PVP-I, PVPP, and PVP/VA Copolymer. Beyond supplying high-quality materials, we provide technical consultation, customized solutions, and reliable global service to help customers meet diverse formulation and regulatory requirements.
30+
Years of Manufacturing Expertise
1,800 Tons
Annual Production Capacity
100%
Batch Quality Inspection
Advanced Manufacturing Plant
Our advanced manufacturing facility is equipped with modern production lines and comprehensive quality control systems dedicated to Povidone and its derivatives. Every production stage, from raw material inspection to finished product testing, is carefully managed to ensure product consistency and manufacturing reliability. Products are manufactured in accordance with USP, EP, and ChP standards, providing stable quality, batch-to-batch consistency, and dependable supply for pharmaceutical, cosmetic, and industrial applications worldwide.
About Us
Application Scenario
Latest News
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Top 5 Povidone K90 Manufacturers In The WorldPovidone K90 (PVP K90) is a high molecular weight, water-soluble polymer widely used in...Read More
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PVP K90 Fine Powder Breakthrough: Residual Monomer ≤8ppm (60 Mesh)When PVP K90 is further micronized into high surface-area fine powder, the real challen...Read More
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Top 5 Povidone K15 Manufacturers In The WorldPovidone K15, also known as Polyvinylpyrrolidone K15 (PVP K15), is one of the most wide...Read More
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K30 Or K90 A Guide To Choosing The Right PVP For Your FormulationIn formulation science, the performance of a polymer is not defined by its name, but by...Read More
Testimonials
Carlos Mendez, Colombia
Technical Procurement Manager
We have been working with Hangzhou Rainbow Import & Export Co., Ltd. for three years to import pharmaceutical and cosmetic raw materials. The PVP K30 and NVP monomers they provide are of extremely high purity and excellent batch consistency, perfectly meeting our formulation requirements. They provide customs documentation, analysis reports, and MSDS, ensuring a smooth and seamless import process. Their shipping and packaging are also very professional. We are very impressed with their quality and service and plan to expand our sourcing.
Nour El-Sayed, Egypt
R&D Director
Hangzhou Rainbow Import & Export Co., Ltd. is our primary PVP supplier for skincare products. Their materials helped us improve the stability and clarity of our emulsions, maintaining excellent heat resistance even in Egypt's high temperatures. Furthermore, they provided detailed technical data and sample support, enabling us to quickly complete product registration. From communication to delivery, every step was professional and prompt. We are very grateful for the team's technical background and international service.
Tharindu Perera, Sri Lanka
Production Manager
As a manufacturer specializing in hair and skin care products, we have extremely high requirements for the viscosity and clarity of our raw materials. Hangzhou Rainbow Import & Export Co., Ltd.'s cross-linked PVP series successfully addressed our formulation stability challenges. Their team provided meticulous guidance during sample testing, ensuring we achieved precise dosages. Their product packaging is secure and reliable, and their delivery is prompt. They are a trustworthy partner. We have designated Hangzhou Rainbow Import & Export Co., Ltd. as our core raw material supplier.
Grace Namatovu, Uganda
Quality Control Supervisor
The Povidone-Iodine and PVP-K90 raw materials provided by Hangzhou Rainbow Import & Export Co., Ltd. have performed exceptionally well in our medical disinfectant product line. The test results for each batch are consistently reliable and fully comply with our quality system requirements. Their after-sales service is responsive and they provide great support with shipping and document preparation. Despite the distance between us, the cooperation process has always been smooth and efficient. I have complete confidence in their professionalism and integrity.
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