Sodium Carbomer is the sodium salt of crosslinked polyacrylic acid used as a rheology modifier. It's used to thicken water-based systems, stabilize oil-in-water emulsions, and suspend particles with predictable, pH-responsive viscosity.
A thickening agent that stabilizes gels and creams.
Category
Emulsifying
Type
Rheology Modifier
Ingredient Ratings
Overall Rating
Great
Comedogenic Risk
None
Skin Benefits
It creates smooth, cushiony gels that spread evenly and feel stable on skin, helping keep formulas uniform so actives are distributed consistently during application.
Uses In Skincare & Cosmetics
It's widely used in water-gel serums, lightweight moisturizers, and hair gels to build body and maintain a steady texture.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
It's considered low risk for irritation at typical levels and doesn't meaningfully penetrate skin. Minor dryness or tightness can occur if overused; no notable regulatory restrictions apply.
Is Sodium Carbomer a Good Ingredient?
It earns a Great rating as a well-established, inert polyacrylate thickener with strong formulation stability and low irritation potential, backed by extensive cosmetic use data for predictable, pH-responsive gelling.