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solvent

Alcohol Denat.

Watch if sensitive·Strong evidence

A fast-evaporating solvent used to carry actives and give toners a light, "clean" feel; at the concentrations used in classic astringents it can be genuinely drying or irritating with repeated use, especially on dry or compromised skin, though it is not inherently toxic and is a normal, well-studied cosmetic ingredient.

Worth knowing

  • Can irritate, especially left on

Questions

Is denatured alcohol drying on skin?
At the concentrations used in classic astringents and toners, alcohol denat can genuinely dry or irritate with repeated use, especially on dry or compromised skin. However, it is not inherently toxic and evaporates quickly in most formulations.
What is SD alcohol in skincare?
SD (specially denatured) alcohol is ethanol that has been made undrinkable by adding bitter or toxic compounds. It is used in cosmetics as a fast-evaporating solvent to carry actives and give light, clean textures.

Products with Alcohol Denat.

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.