Hydroxypropyl Methylcellulose Acetate/Succinate

AKA “Hypromellose acetate succinate, hydroxypropylmethylcellulose acetate succinate, Hypromellose acetate succinate [NF], Hpmcas, Celluloseacetatesuccinate”

Ingredient

Ingredient Facts

Hydroxypropyl methylcellulose acetate/succinate

AKA: Hypromellose acetate succinate, Hydroxypropylmethylcellulose acetate succinate, Hypromellose acetate succinate [NF], Hpmcas, Celluloseacetatesuccinate

Ingredient · Film Forming · EWG: 4

Synthetic

Occlusive

Not Clean

Cellulose, 2-hydroxypropyl methyl ether, acetate hydrogen butanedioate

Formula

C10H22O9

Mol. Weight

286.28

CAS #

71138-97-1

Form

Powder

See origin →

Functions

Film Forming

Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.

Creates Protective Barrier

Reduces Inflammation

Locks In Moisture

Fights Bacteria

Traditional Use

A chemically modified cellulose derivative developed in the mid-20th century as a specialized film-forming and thickening agent. Used in modern cosmetics for improved texture and stability.