Carbomer 940

Carbomer is a synthetic polymer used in cosmetic formulations to create clear gels and control viscosity.

Key benefits

Creates clear gels
Provides precise viscosity control
High efficiency thickener
Stabilises formulations

Behaviour in formulations

Carbomer swells in water and forms a gel network when neutralised, increasing viscosity.

Disperse in water phase, then neutralise (e.g. NaOH or TEA) to activate thickening.

Use level considerations

Use Rate (Min): 0.1
Use Rate (Max): 0.5

Leave-on: 0.1–0.5%
Rinse-off: 0.2–0.5%
High efficiency thickener

Starter Use Rate: 0.2–0.3% for most cosmetic formulations

Typically used at 0.1–0.5% depending on desired viscosity.

Formulation summary

Water dispersible (requires neutralisation)
High-efficiency thickener
Produces clear gels
Requires neutralisation step
Provides precise viscosity control

Quality notes

High-purity cosmetic grade carbomer 940 with strong viscosity performance and low residual
solvent content, supporting consistent formulation results.

5 Ingredients Every Beginner Formulator Should Understand

Learn more

Formulation Guides

Carbomer 940

Key benefits

Behaviour in formulations

Use level considerations

Formulation summary

Quality notes

Related products

Xanthan Gum Powder

Glycerin (USP)

Propanediol (1.3)

Sodium Lactate (60% Solution)

Related guides

5 Ingredients Every Beginner Formulator Should Understand

Gel system

Gel moisturiser

Join the JNA Community