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Skin Conditioning

POTASSIUM NITRATE

CAS 7757-79-1
72

Safety score · 0–100

Fine

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

Potassium nitrate — a mineral salt best known for calming nerve sensitivity in toothpaste. Safe at the low levels used in oral and skin products; an oxidizer in pure form.

Function

ORAL CARESOOTHING

Skin benefits

  • Desensitizing agent in toothpaste for sensitive teeth
  • Mild astringent
  • Well-studied at low oral cosmetic levels

Known concerns

  • Oxidizer in concentrated form
  • Limited topical skincare benefit

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.