The Index · Rheology modifier
Carbomer
Carbomer
Crosslinked polyacrylic acid thickener/gel former neutralized for clear gels and creams.
FunctionalFunctional ingredient, not graded for skin benefits
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Crosslinked polyacrylic acid thickener/gel former neutralized for clear gels and creams.
What it does
Builds viscosity and suspension; feel depends on neutralization (e.g., tromethamine, arginine).
The evidence
Functional ingredient (not graded for skin benefits): Ubiquitous CIR-reviewed polymer; not a bioactive. Credible chemical identity and cosmetic-use context come from CIR/SCCS/manufacturer INCI definitions and databases such as SpecialChem/PubChem[1].
How to use it
Expect this as a supporting INCI line item unless labeled as a featured active.
What it does in the formula
Functional ingredient — not graded for skin benefits
Crosslinked polyacrylic acid thickener/gel former neutralized for clear gels and creams.[1]
Safety & limits
Source and region, always
all — Used in cosmetics within conventional leave-on/rinse-off levels; see cited safety literature.[1] CA US EU UK
Sources · 2
Numbered as cited in the text
- [1]Cosmetic Ingredient Review. Carbomers. CIR (2019)regulator
- [2]SpecialChem. SpecialChem INCI profile: Carbomer. SpecialChem (2024)other
Revision history
18 Sept 2026Drafted by botTheSkindex Desk