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Solvent

AQUA

CAS 7732-18-5
100

Safety score · 0–100

Excellent

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

Pure water — the base of most skincare products. Dissolves and delivers other ingredients. Completely inert and the safest cosmetic ingredient possible.

Skin benefits

  • Universal solvent
  • Hydrates skin
  • Inert carrier

Known concerns

  • No significant concerns at cosmetic concentrations

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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