Cellulose Gum

What is Cellulose Gum?

Cellulose gum, also known as sodium carboxymethylcellulose, is a semisynthetic polymer obtained by chemically modifying cellulose, the primary structural component of plant cell walls sourced from wood pulp or cotton. This process involves treating cellulose with sodium hydroxide and monochloroacetic acid to add carboxymethyl groups, making it water-soluble and highly viscous. In cosmetics, it serves as a multifunctional ingredient in categories like creams, lotions, gels, shampoos, and makeup. It functions by absorbing water to swell and increase viscosity, thereby suspending particles, preventing ingredient separation in emulsions, binding powders for cohesion, and forming flexible films upon drying that enhance product adherence and water resistance on skin or hair.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Binder
Helps hold solid ingredients together to form cohesive tablets, compacts, or sticks, improving pressability, integrity, and wear of the finished product.
Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Fragrance ingredient
Contributes scent character and/or masks base odors, shaping the overall sensory experience of the formula (subject to allergen and IFRA considerations).
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.
Binding
Provides cohesion by helping ingredients stick together, improving the strength and integrity of pressed powders, tablets, or solid bars.
Masking
Reduces perception of unpleasant odors or tastes by neutralizing them or covering them with more acceptable sensory notes.

Benefits

Enhances product texture for smoother application and better skin feel.

Stabilizes emulsions to maintain formula integrity over time.

Forms protective films that improve makeup longevity and water resistance.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals seeking stable, non-separating skincare formulations.
Those with rare allergies to cellulose derivatives.
Users of sensitive skin products preferring low-irritancy thickeners.
Individuals sensitive to modified plant polysaccharides.
People using makeup or sunscreens for improved wear and hold.
People preferring strictly unmodified natural ingredients.

Safety Notes

  • Recognized as safe for cosmetic use by the Cosmetic Ingredient Review.
  • Rated low hazard with minimal irritation potential by authoritative assessments.

Frequently Asked Questions about Cellulose Gum

What is cellulose gum made from?

It is derived from plant cellulose, chemically modified to become water-soluble sodium carboxymethylcellulose.

Is cellulose gum safe for daily skincare use?

Yes, it is considered safe for cosmetic applications by regulatory and expert panels.

Does cellulose gum irritate sensitive skin?

It shows low irritation potential based on safety assessments.