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Solvent

SODIUM NAPHTHALENESULFONATE

CAS 532-02-5 / 1321-69-3 Updated
58

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A naphthalene-derived sulfonate hydrotrope — helps dissolve poorly soluble ingredients in water-based formulas. Mostly industrial; carries irritation and environmental concerns.

Function

SURFACTANT - HYDROTROPESURFACTANT - CLEANSING

Skin benefits

  • Hydrotrope solubilization
  • Reduces surface tension

Known concerns

  • Skin/eye irritation potential
  • Limited cosmetic safety review
  • Naphthalene-class environmental concerns

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related solvents

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.