Customized Granulation: Solving Difficult Formulations
Not every molecule behaves on a tablet press. Poor flow, weak compaction, moisture sensitivity, or a very high or very low dose can all make a formulation difficult. This is where customized granulation makes the difference — engineering a granule specifically for your molecule rather than forcing it through a standard process.
What Is Customized Granulation?
Customized granulation is the development of a tailored, ready-to-compress granule designed around the specific behaviour of your active pharmaceutical ingredient (API). Instead of a one-size-fits-all approach, the granule's flow, particle size, uniformity, and compressibility are engineered to solve the exact challenge your molecule presents. The result is a Directly Compressible (DC) Granule that runs cleanly on a tablet press and produces a consistent, high-quality tablet.
When You Need Customized Granulation
Customized granulation is especially valuable when a molecule resists standard processing:
Poor flow — the API doesn't feed uniformly into the press
Weak compaction — tablets cap, laminate, or fail hardness
Moisture or heat sensitivity — the API degrades during wet granulation and drying
Difficult dosing — very high-dose actives that inflate tablet size, or very low-dose actives that struggle with content uniformity
Combination products — multiple actives that must be blended and compressed reliably
In each of these cases, a customized granule solves at the granule stage what would otherwise become a persistent production problem.
How the Development Process Works
A capable partner takes your molecule and requirements, then develops a granule to match. At YSK Laboratories, this runs through our in-house R&D using proprietary, solvent-free direct-compression technology: we assess the API, design the granule composition, optimise flow and compressibility, scale it up, and deliver a ready-to-compress DC Granule — with documentation support throughout. Because the process is solvent-free and single-step, it also protects sensitive molecules and keeps excipient load low.
Why It Matters
Customized granulation shortens development timelines, reduces the risk of failed batches, and can rescue molecules that would otherwise be difficult or uneconomical to tablet. For formulators, it turns a problem API into a routine, reliable product.
Working With YSK Laboratories
If you're facing a formulation challenge, customized granulation is often the fastest route to a stable, manufacturable tablet. Our R&D team specialises in developing tailored DC Granules for exactly these difficult cases. Explore our DC Granules range or get in touch to discuss your molecule.
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