Povidone K90 (PVP K90), a versatile polymer with the CAS number 9003-39-8, is a subject of extensive scientific study due to its unique and beneficial properties. NINGBO INNO PHARMCHEM CO.,LTD. is proud to offer high-quality PVP K90 that embodies these scientifically validated attributes, making it a preferred choice in pharmaceutical, cosmetic, and industrial applications.

At its core, Povidone K90 is a synthetic, linear polymer composed of repeating N-vinylpyrrolidone units. Its defining characteristic is its excellent water solubility, allowing it to be easily dissolved in water and many common organic solvents such as alcohols and amines, while remaining insoluble in acetone and ether. This broad solubility profile makes it highly adaptable for various formulation processes, whether in aqueous or non-aqueous systems.

One of the most scientifically recognized attributes of PVP K90 is its film-forming capability. When applied to a surface, it forms a clear, hard, and glossy film that is both breathable and protective. This property is invaluable in cosmetic products, particularly hair styling products, where it provides hold and shine, and in pharmaceutical applications for tablet coatings that protect the active ingredient and control release.

PVP K90 also exhibits remarkable stability. It is chemically stable under standard conditions, resistant to heat, light, and pH changes within typical formulation ranges. This stability ensures that the polymer does not degrade over time, maintaining its functional properties and contributing to the overall shelf-life of the final product. Its biocompatibility and physiological inertness are also well-documented, meaning it is generally non-toxic, non-irritant, and does not cause allergic reactions, especially when used in oral or topical pharmaceutical and cosmetic applications. This safety profile is a critical factor in its widespread acceptance.

Furthermore, PVP K90 acts as an effective stabilizer for suspensions, emulsions, and dispersions. It increases the viscosity of solutions, preventing the settling of solid particles or the separation of immiscible liquids. This makes it ideal for liquid pharmaceutical formulations and cosmetic products like lotions and shampoos, ensuring a consistent and appealing texture and performance. The ability of PVP K90 to complex with various organic and inorganic compounds also contributes to its versatility, allowing it to enhance the properties of other ingredients in a formulation.

Understanding these scientifically established properties – solubility, film-forming ability, stability, biocompatibility, and stabilizing action – is key to appreciating why PVP K90 from NINGBO INNO PHARMCHEM CO.,LTD. is such a sought-after ingredient for those aiming for excellence in their product development.