Nonoxynol-1
AKA “37205-87-1, Marlophen NP 6, Marlophen NP 8, Marlophen NP 10, Marlophen NP 12, Neonol AF 9, Neonol AF 10, Neonol AF9 10A, Neonol AF9 12A”
Ingredient
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Ingredient Facts
Nonoxynol-1
AKA: 37205-87-1, Marlophen NP 6, Marlophen NP 8, Marlophen NP 10, Marlophen NP 12, Neonol AF 9, Neonol AF 10, Neonol AF9 10A, Neonol AF9 12A
Ingredient · Antimicrobial · EWG: 4
Synthetic
Preservative
Not Clean
Nonoxynol-12 Iodine is a complex of Nonoxynol-12 and iodine
Formula
C17H28O
Mol. Weight
248.40
CAS #
-
Form
Liquid
State
Colorless to yellowish liquid; [BASF MSDS]
See origin →
Functions
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Fights Bacteria
Traditional Use
A synthetic non-ionic surfactant developed in the mid-20th century. Used in cosmetics as an emulsifier and solubilizer to help blend water and oil-based ingredients in formulations.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Amended Final Report on the Safety Assessment of Nonoxynol-1, -2, -3, -4, -5, -6, -7, and -8
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Nonoxynol-1
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Nonoxynol-10
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Nonoxynol-100
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Nonoxynol-12
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Nonoxynol-120
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Nonoxynol-14
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Allergic contact dermatitis from nonoxynol-12 in a polish.
Wilkinson SM, Beck MH, August PJ
Contact dermatitis, 1995
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR