Octoxynol-9
AKA “Nonoxynol-9 analog, Octylphenol ethoxylate, UNKNOWN”
Surfactant
Ingredient Facts
Octoxynol-9
AKA: Nonoxynol-9 analog, Octylphenol ethoxylate, UNKNOWN
Surfactant · Cleansing · EWG: 5
Synthetic
Cleanser
Emulsifier
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-[4-(1,1,3,3-tetramethylbutyl)phenyl]-.omega.-hydroxy- (9 mol EO average molar ratio)
CAS #
9002-93-1
Form
Liquid
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Emulsifier
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Removes Impurities
Mixes Oil & Water
Traditional Use
Developed in the 1950s as a spermicidal nonionic surfactant for contraceptive products. Later incorporated into cosmetics as an emulsifier and solubilizing agent for oil-based ingredients.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Final Report on the Safety Assessment of Octoxynol-1, Octoxynol-3, Octoxynol-5, Octoxynol-6, Octoxynol-7, Octoxynol-8, Octoxynol-9, Octoxynol-10, Octoxynol-11, Octoxynol-12, Octoxynol-13, Octoxynol-16
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Octoxynol-9
European Commission
EU Cosmetic Ingredient Database (CosIng)
Octoxynol-9 Carboxylic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Octoxynol-9 Sulfate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Octoxynol-9
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Final report on the safety assessment of octoxynol-1, octoxynol-3, octoxynol-5, octoxynol-6, octoxynol-7, octoxynol-8, octoxynol-9, octoxynol-10, octo
Johnson W Jr
International journal of toxicology, 2004
Verified Jun 2026
Data: CosIng · EWG · CIR