Ceteareth-25

Benefits
Softening

What is Ceteareth-25?

Ceteareth-25 is a synthetic non-ionic surfactant derived from cetyl alcohol reacted with 25 moles of ethylene oxide, creating a polyethylene glycol ether. This structure allows it to function primarily as an emulsifier and surfactant in cosmetic formulations like shampoos, body washes, creams, and lotions. It lowers surface tension between oil and water phases, enabling stable emulsions where oils disperse evenly in water-based products. As a cleansing agent, it forms micelles that lift dirt and oils for easy rinsing. Its solubilizing action incorporates fragrances and oils into clear aqueous solutions, ideal for toners and sprays. With a fatty alcohol base, it contributes softening effects to skin and hair by reducing friction and improving texture during use. Commonly found in rinse-off and leave-on products at varying concentrations depending on the formula's needs.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1-3 View on EWG →

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.
Cleansing agent
Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.
Solubilizing agent
Helps incorporate oils and fragrance into water-based formulas by forming micro-solutions, enabling clear sprays, toners, and micellar products.

Benefits

Gentle cleansing that removes impurities while maintaining skin moisture balance.

Supports emulsion stability for smooth, creamy textures in lotions and creams.

Provides softening sensation on skin and hair through surfactant action.

Who It's For

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

Who May Benefit Who Should Avoid
Individuals with normal to dry skin using daily cleansers or shampoos.
Those with extreme sensitivity to ethoxylated compounds may experience mild discomfort.
Users of emulsified products like moisturizers seeking stable formulas.
Individuals preferring completely natural, non-synthetic ingredients.
People preferring mild surfactants in foaming or micellar waters.
People with known reactions to non-ionic surfactants in patch tests.

Safety Notes

  • Rated low concern by EWG with scores from 1 to 3, indicating minimal risk.
  • Deemed safe for cosmetic use by Cosmetic Ingredient Review based on concentration practices.

Frequently Asked Questions about Ceteareth-25

What does Ceteareth-25 do in skincare?

It acts as a surfactant for cleansing, emulsifying oils in water, and solubilizing fragrances while softening skin.

Is Ceteareth-25 safe for sensitive skin?

It has low irritation potential per safety reviews, suitable for most but patch test if sensitive.

Does it cause comedones?

No, it carries a comedogenic rating of 0, making it non-pore-clogging.