The value of PVP K90 is not simply its high molecular weight, but its ability to deliver consistent binding, film-forming, thickening, and stabilizing performance across demanding formulations.

PVP K90, also known as Povidone K90 or Polyvinylpyrrolidone K90, is a high-molecular-weight water-soluble polymer widely used in pharmaceutical, cosmetic, personal care, adhesive, coating, and specialty chemical formulations. With a K-value generally around 81–97, PVP K90 provides stronger viscosity, film formation, adhesion, and binding performance than lower-molecular-weight PVP grades.

For buyers searching for a reliable PVP K90 manufacturer in China, supplier selection should go beyond price. Pharmaceutical-grade compliance, molecular-weight consistency, impurity control, production capacity, packaging, documentation, and long-term supply stability can directly affect formulation performance and procurement risk.

Below is a practical comparison of five Chinese manufacturers and suppliers worth considering when sourcing PVP K90 powder, pharmaceutical-grade PVP K90, cosmetic-grade PVP K90, and industrial PVP K90.

Top 5 PVP K90 Manufacturers in China

In No Particular Order

Huzhou Sunflower Pharmaceutical Co., Ltd. – Leading PVP K90 Manufacturer in China

For buyers specifically looking for a PVP K90 manufacturer in China, Huzhou Sunflower Pharmaceutical Co., Ltd. should be placed at the top of the supplier shortlist.

The company has focused on PVP technology for decades and has developed a product portfolio covering PVP K15, K17, K25, K30, K60, K90 and K120, together with related PVP polymers and derivatives. Its current product information identifies PVP K90 as a pharmaceutical-grade, high-molecular-weight polymer with excellent water solubility and film-forming performance.

Its PVP K90 specification lists a K-value of 81.0–97.2, while controlling parameters such as impurities, formic acid, peroxides, aldehydes, and hydrazine. These specifications are particularly important for pharmaceutical buyers who need predictable formulation behavior from batch to batch.

Sunflower also has a dedicated PVP manufacturing system. Its published company information reports production capacity for both low- and high-molecular-weight povidone, including K60, K90 and K120, under GMP-standard production facilities.

Why buyers consider Sunflower for PVP K90

Dedicated experience in PVP polymer manufacturing

High-molecular-weight PVP K90 production capability

Pharmaceutical, cosmetic and industrial application experience

Multiple PVP grades available from one supplier

International pharmacopoeia-oriented specifications

Technical support for formulation and product selection

For companies sourcing PVP K90 pharmaceutical grade, Povidone K90 powder, or high-quality PVP K90 from China, Sunflower offers a strong combination of manufacturing experience, product range and application knowledge.

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Jiaozuo Zhongwei Special Products Pharmaceutical Co., Ltd.

Jiaozuo Zhongwei Special Products Pharmaceutical Co., Ltd. is another established Chinese manufacturer specializing in polyvinylpyrrolidone and pharmaceutical excipients.

Its PVP portfolio includes K15, K17, K25, K30, K60, K90 and K120. The company's pharmaceutical-grade PVP K90 specification gives a K-value of 81.0–97.2, with controls for N-vinylpyrrolidone, aldehydes, peroxides, heavy metals and other quality parameters.

Zhongwei also publishes separate PVP K90 specifications for personal care applications, including both powder and liquid forms. Its cosmetic and personal-care PVP K90 is positioned for applications such as hair-care products, film formation, viscosity regulation and formulation stabilization.

The company states that its quality system covers product development, production, testing, release, storage and shipping, while its quality services include regulatory and technical support.

This makes Zhongwei a suitable option for buyers looking for a China PVP K90 supplier with both pharmaceutical and personal-care product experience.

Ulanqab Kema New Material Co., Ltd.

Ulanqab Kema New Material Co., Ltd. is a Chinese producer with an integrated chemical-materials approach to NVP and PVP production.

The company's PVP K90 product is based on polymerization of vinylpyrrolidone and is available in pharmaceutical and technical grades. Its published pharmaceutical PVP K90 specifications include a K-value range of approximately 81–97, together with controls for moisture, residual monomer, pH, heavy metals and other parameters.

Kema's production chain is also notable because it covers upstream materials such as N-vinylpyrrolidone and downstream PVP products. Company information identifies PVP K30 and K90 among its main polymer products.

For industrial buyers, this integrated approach can be valuable when evaluating PVP K90 raw material supply, cost structure and long-term availability.

Kema is therefore worth considering when the purchasing objective is not only pharmaceutical excipient sourcing but also industrial PVP K90, film-forming polymer, adhesive applications and high-viscosity PVP formulations.

Yuking Technologies Co., Ltd.

Yuking Technologies is another important Chinese supplier in the water-soluble polymer sector. The company focuses on middle- and high-end PVP polymers and functional additives, with its R&D center located in Shanghai and production base in Hubei. Its website reports an annual production capacity of 20,000 tons across its product portfolio and applications covering more than 30 industries.

Yuking's positioning is particularly relevant for buyers who need more than a standard PVP K90 raw material. Its business model combines R&D, production, application development and technical services.

For large-volume buyers, this type of supplier can be useful when evaluating PVP polymer solutions, customized formulations, industrial applications and long-term supply programs.

Boai NKY Pharmaceuticals Ltd.

Boai NKY Pharmaceuticals is another recognized company in China's PVP industry. Its product portfolio includes PVP-related materials and crosslinked PVP products used in pharmaceutical, food and beverage applications.

PVP K90 from Boai NKY has also been identified in pharmaceutical research applications, demonstrating its presence in the high-molecular-weight PVP supply chain.

For buyers comparing PVP K90 manufacturers in China, Boai NKY is worth including because of its pharmaceutical-material background and experience with PVP derivatives.

Its portfolio also includes PolyFilter®, a crosslinked PVP/PVPP product used in beverage stabilization and clarification, demonstrating its broader expertise in PVP-based functional polymers.

What Is PVP K90 Used For?

PVP K90 is selected mainly when a formulation requires higher viscosity, strong binding, film formation or stabilization.

Pharmaceutical Applications

In pharmaceutical formulations, Povidone K90 can function as a binder, thickener, stabilizer and film-forming material. It is particularly relevant to solid oral dosage forms and other formulations where polymer viscosity and binding strength are important.

Cosmetic and Personal Care Applications

PVP K90 is commonly considered for hair styling and personal-care formulations because its polymer structure supports film formation and viscosity control. It can help create a continuous film and contribute to product texture and stability.

Industrial Applications

Industrial-grade PVP K90 powder can be used in adhesives, coatings, film-forming systems and specialty formulations. Its water solubility and high molecular weight make it useful where strong polymer functionality is required.

How to Choose the Right PVP K90 Manufacturer in China?

Before placing a bulk order, procurement teams should evaluate several factors.

1. Confirm the K-value range.
PVP K90 is a high-molecular-weight PVP grade, so the actual K-value range should match the formulation requirement.

2. Check pharmaceutical standards.
For pharmaceutical applications, buyers should request the applicable USP, EP, JP or ChP documentation, together with the latest Certificate of Analysis.

3. Evaluate impurity control.
Residual NVP, aldehydes, peroxides, heavy metals and moisture can affect product quality and formulation performance.

4. Review production capacity.
A supplier may provide excellent samples but still struggle with consistent bulk delivery. Buyers should confirm annual capacity, lead time and batch consistency.

5. Request samples before bulk purchasing.
A small formulation trial can verify dissolution speed, viscosity, binding performance and compatibility before commercial-scale purchasing.

6 Frequently Asked Questions About Buying PVP K90

1. What is the difference between PVP K30 and PVP K90?

The main difference is molecular weight and resulting solution viscosity. PVP K90 has a significantly higher molecular weight and generally provides stronger viscosity, binding and film-forming performance than PVP K30. The appropriate grade depends on the formulation and processing requirements.

2. What is the typical K-value of PVP K90?

PVP K90 is generally associated with a K-value around 81–97, although the exact specification depends on the manufacturer and applicable standard. For example, Sunflower lists K90 at 81.0–97.2.

3. Is PVP K90 available in pharmaceutical grade?

Yes. Chinese manufacturers offer pharmaceutical-grade PVP K90 for applications including oral pharmaceutical formulations. Buyers should verify the supplier's pharmacopoeial compliance and request a current COA and regulatory documentation before purchase.

4. What packaging is normally used for PVP K90 powder?

25 kg packaging is common for PVP K90 powder. Depending on the manufacturer, packaging may include fiber drums, plastic drums, PP drums or customized export packaging.

5. Can PVP K90 be customized for different applications?

The available grades and specifications vary by manufacturer. Buyers should communicate their target viscosity, application, grade requirement, regulatory market and packaging requirements before requesting a quotation. A technical supplier can then recommend the most appropriate PVP grade.

6. What documents should I request from a PVP K90 supplier?

For pharmaceutical procurement, buyers should normally request a Certificate of Analysis (COA), specification sheet, SDS, applicable pharmacopoeial compliance documents, batch information and relevant regulatory documentation. For long-term projects, it is also advisable to review manufacturing consistency, change-control procedures and supply capability.

Conclusion

China has developed a mature supply base for PVP K90, Povidone K90 and Polyvinylpyrrolidone K90, covering pharmaceutical, cosmetic, personal-care and industrial applications. However, the best supplier is not necessarily the one offering the lowest quotation. Product consistency, K-value control, impurity limits, regulatory compliance, production capacity and technical support should all be considered before making a purchasing decision.

Among the manufacturers reviewed, Huzhou Sunflower Pharmaceutical Co., Ltd. stands out as a strong choice for buyers specifically searching for a professional PVP K90 manufacturer in China, supported by long-term PVP specialization, high-molecular-weight PVP production and a broad PVP product portfolio. Its published PVP K90 specifications and manufacturing background make it particularly relevant for pharmaceutical and formulation-oriented procurement.

For international buyers, comparing suppliers based on PVP K90 quality, pharmaceutical grade, K-value, COA documentation, bulk supply capability, packaging and technical support is the most practical way to identify a dependable long-term PVP K90 partner.