Carbomer
Also known as: E1210
Carbomer is a large polymer that is not meaningfully absorbed when ingested and is permitted by the FDA as an inactive ingredient in drug and supplement formulations. It poses no substance-level health risk at food-relevant exposures.
What it is
Carbomer (carboxypolymethylene), a synthetic high-molecular-weight polyacrylic acid polymer. It is used mainly in pharmaceuticals and cosmetics rather than conventional foods.
Used as a thickener, suspending agent, and stabilizer, primarily in pharmaceuticals, supplements, and cosmetics.
What regulators actually say
"Carbomer is listed in the FDA Inactive Ingredient Database for use in oral, topical, ophthalmic, and other drug formulations."
"Inactive ingredients in FDA-approved drugs are reviewed for safety in the context of the specific dosage form."
Regulatory status
United States — FDA
Permitted as inactive ingredient in FDA-approved drugs and supplements
European Union — EFSA
Not approved as EU food additive (E1210 not assigned)
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