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Carbomer

Polyacrylic acid

Carbomer
Carbomers are synthetic high-molecular-weight polymers of acrylic acid that are crosslinked with either allyl sucrose or allyl pentaerythritol
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Carbomer
Carbomer
Primary function
Hydrophilic matrix former
Typical use level
3 - 10%
Physical data

  • Appearance: white, fluffy powder
  • Particle size: 2 - 7 µm
  • Bulk density: 0.2 g/cm³

Benefits / Claims
In the case of soluble drugs, the predominant mechanism is diffusion through the gel layer. With low solubility drugs, the predominant mechanism is polymer relaxation or erosion.
Suitable for
Cream / Emulsion
Buccal
Oral Suspensions
Oral Syrup
Oral Solutions
Gel
Modified Release specials

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