INCI · other · CIR review pending · used in 3 products
Hydroxypropyl Methylcellulose
Hydroxypropyl Methylcellulose (CAS# 9004-65-3) is a polymer — a large molecule made from repeated cellulose-derived subunits — chemically described as cellulose, 2-hydroxypropyl methyl ether. It is used primarily as a formulation helper ingredient rather than an active. Its official CosIng functions include antistatic, binding, emulsion stabilising, film forming, surfactant, and viscosity controlling.
Evidence level
moderateEWG score
—Comedogenic
1/5Category
other● Benefits
It stabilizes emulsions and thickens cosmetic products, helping to maintain a consistent texture and formula integrity. It can also stabilize foam in cleansing products.
emulsion-stabilizingviscosity-controllingfilm-forming
● Cautions


