Skip to content

Other

FORMAMIDINE SULFINIC ACID

CAS 1758-73-2 Updated
15

Safety score · 0–100

Avoid

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

About

A powerful reducing agent (thiourea dioxide) used in hair-colour stripping. GHS-classified as fatal if inhaled and as a chronic-organ hazard. Strictly a processing chemical.

Function

REDUCING

Skin benefits

  • Powerful reducing agent for hair-color removal
  • Industrial bleaching applications

Known concerns

  • GHS H330 fatal if inhaled
  • GHS H251 self-heating may catch fire
  • GHS H373 organ damage on prolonged exposure
  • H315/H319/H335 irritation
  • Not appropriate as a leave-on cosmetic

References

EU

EU CosIng database

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

Related others

15
1,2-Epoxybutane
Other
 15
1-Methoxy-2,4-diaminobenzene (2,4-Diaminoanisole - CI 76050) and its salts
Other
 15
2,3-XYLENOL
Other
 15
4,4'-Bi-o-toluidine dihydrochloride
Other
 15
4-Methyl-m-phenylenediamine (Toluene-2,4-diamine) and its salts
Other
 15
AMINOPHYLLINE
Other
 15
ASARUM SIEBOLDII ROOT WATER
Other
 15
BUTYL ACRYLATE
Other

Check your shelf

Find FORMAMIDINE SULFINIC ACID in your products.

Scan any cosmetic product with LuxSense to see if it contains FORMAMIDINE SULFINIC ACID and get a full ingredient breakdown with safety scores.

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.