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Povidone K90 is a synthetic polymer belonging to the polyvinylpyrrolidone (PVP) family, characterized by a K-value of approximately 90, indicating its high molecular weight and significantly higher viscosity compared to lower grade PVPs. These properties make Povidone K90 an ideal excipient for formulations requiring precise microstructure control and modulation of active release kinetics.
Due to its complete water solubility and ability to form highly viscous solutions, Povidone K90 readily creates a robust polymer network that acts as a structural “matrix framework,” maintaining the integrity of the dosage form. This is particularly critical in controlled release and sustained release systems, where the diffusion rate of the active ingredient must be carefully regulated over time.
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Povidone K90 is not an active pharmaceutical ingredient (API), but a high-performance functional excipient composed of:
These characteristics enable Povidone K90 to form a diffusion-controlled polymer matrix, effectively regulating the release profile of active ingredients throughout the lifecycle of the dosage form.
Povidone K90 provides key advantages for advanced formulations:
Povidone K90 is directly used in the following dosage forms and processing steps:
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For more information regarding Povidone K90 sourcing, please contact us:
