CheckVegan

Is Nonoxynol-1 vegetarian?

Nonoxynol-1

Vegetarian Vegetarian
Vegan Vegan

Nonoxynol-1 is an ethoxylated alkylphenol surfactant made from nonylphenol reacted with approximately 1 unit of ethylene oxide, used as a nonionic surfactant in cosmetic and industrial formulations.

INCI name Nonoxynol-1
CAS number 26571-11-9
EC number 248-762-5
CosIng ID 105188
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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