Ethyl Acetate is generally a lower-concern ingredient for seborrheic dermatitis at normal cosmetic use levels, but it can feel drying in solvent-heavy products. It helps dissolve ingredients and evaporates quickly; it is not a treatment active.

No applicable exact-ingredient human seb derm or Malassezia study was found. Product type is the practical guide: a small amount in a formula is different from repeated exposure to a strong remover. Avoid using a product on raw skin if it causes immediate stinging or tightness.