Octoxynol-40
AKA “Octoxynol-40, Polyoxyethylene Octyl Phenol
Synthetic
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Ingredient Facts
Octoxynol-40
AKA: Polyoxyethylene Octyl Phenol
Synthetic · Cleansing | Surfactant - Cleansing | Surfactant - Emulsifying · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Synthetic
Clean
A gentle cleansing agent that helps remove oil and dirt while keeping formulas stable and smooth. Works to lift away impurities without stripping skin.
CAS #
9002-93-1
Plant-Derived
Synthetic. Derived from fatty alcohols and ethylene oxide, belonging to the nonionic surfactant chemical family. Synthesized through ethoxylation, where ethylene oxide chains are added to fatty alcohol bases.
Function
Cleansing | Surfactant - Cleansing | Surfactant - Emulsifying
Benefits
Removes Impurities
Cleansing Surfactant
Emulsifier
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Mixes Oil & Water
Traditional Use
Developed as a highly ethoxylated nonionic surfactant in the cosmetic chemistry era of the 1950s-60s. Used as a powerful emulsifier and solubilizing agent in skincare and personal care formulations.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Mild Irritant
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR
Octoxynol-40 — Duck Heart Ghost