Plasticizers for Softgel Capsules

The use of softgel capsules is increasing across a wide range of applications including prescription medicines, consumer health, vitamins, and mineral supplements.One of the key components of the softgel capsule is the plasticizer used to make the shell elastic and pliable and to minimize brittleness and cracking.The plasticizer usually accounts for 20-30% of the wet gel formulation which can impact the quality of the finished product.

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New Fast Drying Plasticizer Concept

NEW! Sorbitol Special FD is a next‑generation gelatin capsule plasticizer system designed to help manufacturers reduce capsule drying time by up to 50% while maintaining shell performance.

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The Role of Plasticizers

A softgel capsule requires a plasticizer to guarantee mechanical stability and elasticity. The choice of plasticizer directly influences both manufacturing performance and finished product quality.

  • Film Integrity

  • Drying Time

  • Hardness & Brittleness

  • Stability & Permeability

Introducing, Sorbitol Special

Developed to address inherent limitations of aqueous sorbitol, Sorbitol Special is a Sorbitol-Sorbitan solution that delivers superior plasticizing performance through a dual mechanism.

 

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Sorbitol Special Premium Plasticizer for High‑Performance Softgel Capsules

A next‑generation sorbitol-based plasticizer, Sorbitol Special improves softgel stability, drying time, and compatibility—offering a superior alternative to glycerin for pharmaceutical and nutraceutical capsules.

Softgel Development & Pilot Capabilities

SPI Pharma's softgel development capabilities help customers move from concept to commercialization with greater confidence.