Rheozan® is Solvay’s unique range of rheology modifiers. These advanced ingredients allowformulators great flexibility by providing thickening properties in extreme pH applications with a similar structure as Xanthan. Additionally, our Rheozan® Range helps stabilize hydrocolloid, which creates an aqueous solution of high viscosity and high yield.

This range has a 100% RCI, which contributes to the improvement of the eco-toxic profile of your products.

Finally, Solvay’s Rheozan® Range is extremely versatile and can be used in both personal care formulations (Rheozan® SH) for its smoothing and calming benefits and home care formulations (Rheozan®) for its easy adhesion to surfaces and solubility properties. 


What are Rheology Modifiers? 

Rheology modifiers are designed to give formulators unmatched control over the viscosity, suspension and texture of advanced personal care and home care solutions. 

For formulators and manufacturers, the thickening and suspension polymers ensure long-term stability to the products put on the shelves. For consumers, the texture before and during use provides a memorable sensory experience to encourage  product repurchase.

Our entire portfolio of super Xanthans for acidic formulations is non eco-toxic and many are COSMOS certified.


Discover our complete Rheomer portfolio in our catalog!






  • Thickening agent 
  • Viscosity modifiers 
  • Suspension aid 
  • Better adhesion to surfaces 
  • Clear formulation 
  • Easily soluble 
  • PH stable  
  • Biodegradable 
  • 100% natural origin
  • Home care

Rheozan® SH

  • Thickening agent 
  • Viscosity modifiers 
  • Dispersing & spreadability agent 
  • Smoothing and calming 
  • Non-tacky 
  • Wide PH compatibility 
  • Cold processable 
  • Skin care, cosmetics




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Solvay develops innovative ingredients and natural-based technologies that unlock opportunities for creating renewed consumer experiences in their skin care routine.

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We combine our dedication to engineering the most advanced home care solutions with a passion for creating sustainable materials for natural home care products.