Octoxynol-12

What is Octoxynol-12?

Octoxynol-12 is a synthetic nonionic surfactant, chemically known as polyethylene glycol (12) octylphenyl ether. It originates from the reaction of octylphenol, a hydrophobic alkyl chain, with ethylene oxide to form a hydrophilic polyether head. This amphiphilic structure enables it to function effectively in personal care formulations, particularly in rinse-off cleansers, shampoos, and emulsified systems such as lotions. As a surfactant, it lowers the surface tension at the interface between water, oils, and soils, allowing these substances to mix and be easily rinsed away during cleansing. In its emulsifying role, it forms stable micellar structures that encapsulate oil droplets in water-based products, preventing separation and ensuring a uniform texture. Typically used at low percentages, it supports the creation of foaming and stable rinse-off products without leaving residues.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3-7 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Enables thorough cleansing by breaking down oils and dirt for easy rinsing.

Stabilizes oil-in-water emulsions to maintain product consistency.

Promotes lathering in shampoos and washes for a satisfying user experience.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users of daily shampoos and body washes seeking good foam and cleanse.
Those with highly sensitive skin prone to irritation from surfactants.
Individuals with normal skin types using emulsified cleansers.
Individuals concerned about synthetic ingredients or potential impurities.
People preferring effective rinse-off products for hair and body care.
People with allergies to ethoxylated compounds.

Safety Notes

  • Considered safe for cosmetic use by ingredient review panels when formulated properly.
  • Potential for impurities from manufacturing process warrants checking product quality.

Frequently Asked Questions about Octoxynol-12

What does Octoxynol-12 do in skincare products?

It acts as a surfactant to cleanse by reducing surface tension and as an emulsifier to blend oils and water stably.

Is Octoxynol-12 safe for regular use?

Safety panels confirm it safe in cosmetics at common concentrations, especially rinse-off items.

Does it clog pores?

It has a low comedogenic rating, unlikely to contribute to pore blockage.