Steareth-2 is a synthetic emulsifier and surfactant used to stabilize formulations and help cleanse. Published reviews from CIR identify it as safe at typical cosmetic use levels, though like any surfactant, high concentrations could irritate.

What is steareth-2 used for?

This ingredient acts as an emulsifier to blend oil and water, and as a mild cleanser to help lift oil and debris. It's commonly used in cleansers and serums.

surfactant · emulsifier

Steareth-2

Commonly feared, low concern·Moderate evidence

A gentle surfactant derived from stearyl alcohol and ethylene oxide. It is used to stabilize emulsions and is well tolerated in rinse-off and leave-on formulas. Approved for cosmetic use.

The myth vs the evidence

The "eth" suffix signals ethoxylation, and some consumers equate Steareth ingredients with PEG concerns. Steareth-2 is approved for cosmetic use and graded safe by CIR. The evidence does not support blanket avoidance.

Questions

Is steareth-2 safe?: Steareth-2 is a synthetic emulsifier and surfactant used to stabilize formulations and help cleanse. Published reviews from CIR identify it as safe at typical cosmetic use levels, though like any surfactant, high concentrations could irritate.
What is steareth-2 used for?: This ingredient acts as an emulsifier to blend oil and water, and as a mild cleanser to help lift oil and debris. It's commonly used in cleansers and serums.

Products with Steareth-2

References

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.