Our polymer alginate portfolio for a broad range of pharmaceutical applications

Alginates are natural polymers extensively used in the pharmaceutical industry due to their unique properties and superior performance. They enable viscosity in solutions and form a three-dimensional gel in the presence of calcium ions. This distinctive functionality supports a diverse range of applications, such as controlled release. Alginates can also function as active pharmaceutical ingredients in anti-reflux products.

Our alginate family of products – including Protanal®, Manucol® and Protacid® – are extracted from sustainably-harvested seaweed. Backed by years of expertise in this field, our alginates maximize yield and ensure batch-to-batch consistency. We offer a variety of viscosities and gel strengths to deliver specific gelling, stabilizing and thickening properties.

Product benefits
  • Cold and hot water solubility

  • Viscosity, gelation and rheology-modification at low concentration

  • Gelation with calcium source (no need for heat treatment i.e. cold-gelling)

  • Suspending agent

  • Water-binding / high water retention efficiency

  • Film-forming

Related assets

Find out more about our alginate portfolio.

Key applications
  • Anti-reflux

  • Controlled-release dosage forms

  • Enteric coatings

  • Microencapsulation

  • Stabilization in solutions and suspensions

Product recommendations

*Examples only and not representative of a complete list of recommended products or benefits

Alginates: Protanal, Manucol and Protacid






Protanal® LFR 5/60

Protacid® F120NM

Sodium alginate

Alginic acid

Premier raft formation in liquid products

Alginic acid form for chewable products

Controlled Release

Protanal® CR 8133

Manucol® LKX

Protanal® CR 8233

Sodium alginate

Sodium alginate

Sodium alginate

Lowest viscosity grade

Medium viscosity grade

Highest viscosity grade

Solid Dispersion

Protanal® LFR 5/60

Sodium alginate

Stabilizes crystalline dispersions and improves wettability

Nano-suspension Stabilizer

Protanal® LFR 5/60

Sodium alginate

Steric and electrostatic stabilizing effects

Connect with us
Ready to start your Protanal®, Manucol® or Protacid® collaboration? Speak to one of our experts today.

We can help you along your product development process. Contact us to start your journey to success.


We can help you along your product development process. Contact us to start your journey to success.