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Carbomer homopolymer Type B is a high-molecular-weight, acrylic acid polymer crosslinked with allyl pentaerythritol, appearing as a white powder that swells in water to form highly viscous, stable gels. It is widely used in pharmaceuticals (topical gels, emulsions), cosmetics, and industrial applications for its excellent thickening, suspending, and stabilization properties.
Key Characteristics & Uses
- Viscosity: Type B offers high viscosity, often higher than Type A in neutralized systems.
- Pharmaceuticals: Frequently used in ophthalmic gels, oral syrups, and bioadhesive delivery systems for its high stability and prolonged residence time.
- Safety: Regarded as safe for topical use, though high concentrations can cause skin/eye irritation.
- Identity: It is also referred to as Carbomer 934P, 974P, or by CAS number 151687-96-6.
Key Differences from Type A
- Structure: Both are crosslinked with allyl pentaerythritol, but they differ in viscosity profiles, with Type B generally providing higher viscosity and different rheological characteristics compared to Type A.
- Performance: Type B is optimized for formulations requiring strong, thick, and consistent gel structures.
Usage Tips
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Web results
Carbomer Homopolymer Type B: What is it and ...
Drugs.com
https://www.drugs.com › Inactive Ingredients
Drugs.com
https://www.drugs.com › Inactive Ingredients
Mar 27, 2026 — Carbomer is a high molecular weight polymer compound used commonly in the cosmetic industry. These compounds can absorb large amounts of water.Read more
People also ask
Is carbomer homopolymer type B safe?
Carbomers are considered to be generally regarded as safe by the FDA, although high concentrations may lead to eye and skin irritation. Carbomers are commonly found in toothpaste and gels, shampoo, skin lotions, and some lubricant eye drops.Mar 27, 2026
Carbomer Homopolymer Type B: What is it and where is it used?
Drugs.com
https://www.drugs.com › Inactive Ingredients
Drugs.com
https://www.drugs.com › Inactive Ingredients
What is the other name for carbomer homopolymer Type B?
allyl pentaerythritol crosslinked
Carbomer homopolymer type B (allyl pentaerythritol crosslinked)
Carbomer homopolymer type B (allyl pentaerythritol crosslinked)
National Institutes of Health (.gov)
https://pubchem.ncbi.nlm.nih.gov › compound › Carbo...
National Institutes of Health (.gov)
https://pubchem.ncbi.nlm.nih.gov › compound › Carbo...
What are the different types of carbomers?
Based on the cross-linker type, carbomers can be grouped into carbomer homopolymers (acrylic acid crosslinked with allyl sucrose or allyl pentaerythritol), carbomer copolymers (acrylic acid and C10-C30 alkyl acrylate crosslinked with allyl pentaerythritol), and carbomer interpolymers (carbomer homopolymer or copolymer ...
Carbomer - an overview | ScienceDirect Topics
ScienceDirect.com
https://www.sciencedirect.com › topics › carbomer
ScienceDirect.com
https://www.sciencedirect.com › topics › carbomer
Web results
Carbomer homopolymer type B (allyl pentaerythritol crosslinked)
National Institutes of Health (.gov)
https://pubchem.ncbi.nlm.nih.gov › compound › Carbo...
National Institutes of Health (.gov)
https://pubchem.ncbi.nlm.nih.gov › compound › Carbo...
Carbomer homopolymer type B (allyl pentaerythritol crosslinked) chemical information summary.
CARBOMER COPOLYMER TYPE B (ALLYL ...
U.S. Food and Drug Administration (.gov)
https://precision.fda.gov › ginas › app › substances
U.S. Food and Drug Administration (.gov)
https://precision.fda.gov › ginas › app › substances
Names and Synonyms · CARBOMER COPOLYMER TYPE B (ALLYL PENTAERYTHRITOL CROSSLINKED) · CARBOMER 1342 · 1G56KV7BUJ · ACRYLATES/C10-30 ALKYL ACRYLATE CROSSCOPOLYMER ...Read more
Carbomer Copolymer Type B
nmcarbomer.com
https://www.nmcarbomer.com › carbomer-copolymer-ty...
nmcarbomer.com
https://www.nmcarbomer.com › carbomer-copolymer-ty...
Carbomer Copolymer Type B. Including NM-Carbomer TR-1P, and NM-Carbomer 1382G. And meeting the current edition of the following monographs:.Read more
Web results
CARBOMER HOMOPOLYMER TYPE B (ALLYL ...
Inxight Drugs
https://drugs.ncats.io › drug
Inxight Drugs
https://drugs.ncats.io › drug
CARBOMER HOMOPOLYMER TYPE B (ALLYL PENTAERYTHRITOL OR ALLYL SUCROSE CROSSLINKED). K6MOM3T5YL. Possibly Marketed Outside US. First approved in 1997. General ...Read more
Carbomer Homopolymer Type B Ingredient Allergy Safety ...
SkinSAFE
https://www.skinsafeproducts.com › Ingredients
SkinSAFE
https://www.skinsafeproducts.com › Ingredients
Health and safety, common uses, other names and ingredient information for Carbomer Homopolymer Type B.
Carbomer
BOC Sciences
https://www.bocsci.com › blog › carbomer
BOC Sciences
https://www.bocsci.com › blog › carbomer
Apr 26, 2020 — Carbomer is a kind of polymer formed by chemical cross-linking of acrylic acid or acrylate with allyl ether.Read more
Carbomer Homopolymer Type B - Health Benefits and Risks
oasishealth.app
https://www.oasishealth.app › search › ingredient
oasishealth.app
https://www.oasishealth.app › search › ingredient
A synthetic high molecular weight polymer of acrylic acid, commonly used as a thickening, suspending, and emulsifying agent in cosmetics and pharmaceuticals.Read more
CARBOMER HOMOPOLYMER TYPE B (ALLYL ...
U.S. Food and Drug Administration (.gov)
https://precision.fda.gov › ginas › app › substances
U.S. Food and Drug Administration (.gov)
https://precision.fda.gov › ginas › app › substances
Names and Synonyms · CARBOMER HOMOPOLYMER TYPE B (ALLYL PENTAERYTHRITOL CROSSLINKED) · ACRYLIC ACID CROSS-LINKED WITH ALLYL ETHERS OF POLYALCOHOLS (VISCOSITY ...Read more