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Antioxidant

SODIUM THIOSULFATE

CAS 7772-98-7 / 10102-17-7
80

Safety score · 0–100

Good

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

A simple inorganic salt with reducing and chelating activity. Long medical use as antidote and dechlorination agent. Generally safe in cosmetic use at typical concentrations.

Function

REDUCING

Skin benefits

  • Reducing/antioxidant agent
  • Used as an antidote in medicine
  • Helps neutralize chlorine and metals

Known concerns

  • Can liberate sulfur compounds at low pH
  • Mild skin irritation possible
  • Limited cosmetic-specific data

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.