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emulsifier · surfactant

PEG-100 Stearate

Commonly feared, low concern·Strong evidence

A PEG-based emulsifier that blends oils and water in formulas. It is a workhorse ingredient in stable emulsions and is approved for cosmetic use. Well tolerated.

The myth vs the evidence

Clean beauty brands often avoid PEGs, citing concerns about 1,4-dioxane contamination or their synthetic nature. PEG-100 Stearate is approved and graded safe by regulatory bodies. The published evidence does not support the fear.

Products with PEG-100 Stearate

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.