Carboxymethyl Cellulose Acetate Butyrate
AKA “Cellulose Acetate Butyrate Carboxylate, Cellulose Ester”
Ingredient
Ingredient Facts
Carboxymethyl cellulose acetate butyrate
AKA: Cellulose Acetate Butyrate Carboxylate, Cellulose Ester
Ingredient · Emulsion Stabilising · EWG: 1
Synthetic
Occlusive
Emulsifier
Clean
Carboxymethyl Cellulose Acetate Butyrate is the product obtained by the reaction of butyric and acetic anhydrides with carboxymethyl cellulose
CAS #
9050-04-8
Form
Powder
See origin →
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Stabilizes Emulsion
Creates Protective Barrier
Controls Viscosity
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Creates protective layer
Keeps product blended
Controls product thickness
Traditional Use
A semi-synthetic derivative of cellulose created in the mid-20th century as a film-forming and texturizing agent. Developed to replace natural gums while providing superior water resistance and stability.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR