Sorbitol Special™ Premium Plasticizer for High‑Performance Softgel Capsules
What is Sorbitol Special?
The Challenge with Traditional Glycerin
- Very hygroscopic – absorbs moisture quickly
- High solvency – dissolves or interacts with fill excipients and certain active ingredients
- Increases shell moisture & gas permeability – leading to instability, migration, and oxygen-related degradation
- Greater risk of defects in humid / tropical climates
Bottom line: glycerin can compromise product stability, slow down production, and limit formulation possibilities.
Why Sorbitol Special Works Better
How Sorbitol Plasticizes
Sorbitol Special plasticizes gelatin indirectly, improving flexibility through:
- Controlled hygroscopicity
- Mild intermolecular interactions between hydroxyl groups and hydrophilic groups in gelatin or non-gelatin shells
This controlled mechanism results in more stable plasticization, without the excessive moisture uptake or fill interactions associated with glycerin.
Why Choose Sorbitol Special™?
Portfolio
✔ Sorbitol Special
✔ Sorbitol Special MDF 85
✔ Sorbitol Special A-810
✔ Sorbitol Special GC
Advantages
✔ Stable, Efficient Plasticizer
✔ Significantly Less Hygroscopicity
✔ Superior Performance in Hot & Humid Climates
✔ Improved Shelf Life & Product Stability
Application Areas
✔ Prescription drugs
✔ Complex APIs
✔ Highly sensitive fills
✔ Omega‑3 and fish oil
✔ Vitamins & minerals
✔ Plant extracts and botanicals
Key Technical Features
✔ High-purity sorbitol
✔ Low hygroscopicity and water activity
✔ Reduced gas and moisture permeability
✔ Consistent performance across gelatin and non‑gelatin systems
The SPI Pharma Advantage
- Backed by deep expertise in softgel formulation support
- Consistent, reliable supply for global manufacturers
- Technical service available for formulation optimization
- Proven performance in industrial‑scale softgel production
Improve your softgel performance today.
Choose the more stable, less hygroscopic, globally reliable plasticizer.