Hydroxypropyl Methylcellulose Acetate/Succinate

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

Synthetic

Ingredient Facts

Hydroxypropyl methylcellulose acetate/succinate

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

Synthetic · Emollient · EWG: 4

Plant-Derived Synthetic

Emollient

Occlusive

Skin Conditioner

Synthetic

Clean

Creates a lightweight, breathable layer on skin or hair that helps products stay put without feeling heavy or sticky.

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.

Viscosity Controlling

Emollient

Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.

Moisturising

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.