Skip to content

Other

Potassium cyanide

CAS 151-50-8 Updated
2

Safety score · 0–100

Avoid

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

About

An infamous, acutely lethal cyanide salt. Listed on EU Annex II of substances prohibited from cosmetics. Has no cosmetic function and any presence at meaningful concentration would be a major regulatory violation.

Skin benefits

  • No legitimate cosmetic benefit

Known concerns

  • Lethal at sub-gram oral doses
  • EU Annex II prohibited substance
  • Releases toxic hydrogen cyanide gas on contact with acids
  • Inhibits cellular respiration systemically

References

EU

EU CosIng database

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

Related others

2
6-Methoxy-m-toluidine (p-Cresidine)
Other
 2
Alkanes, C1-4, C3-rich, if they contain > 0.1% w/w Butadiene
Other
 2
COBALT CHLORIDE
Other
 2
Chlordane, pur
Other
 2
Curare and curarine
Other
 2
Extract oils (coal), acidic, tar-base free, if it contains > 0.1% w/w benzene
Other
 2
Extract oils (coal), light oil, if it contains > 0.1% w/w benzene
Other
 2
Extract oils (coal), tar base, if it contains > 0.1% w/w benzene
Other

Check your shelf

Find Potassium cyanide in your products.

Scan any cosmetic product with LuxSense to see if it contains Potassium cyanide 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.