Skip to content

TETRAPOTASSIUM ETIDRONATE

CAS 14860-53-8
52

Safety score · 0–100

Moderate

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

About

A potassium salt of etidronic acid used as a chelating agent in cosmetic formulations to prevent metal-catalysed degradation. EU Annex III restricted with maximum concentration limits due to phosphate concerns.

Tetrapotassium etidronate is the potassium salt of etidronic acid (1-hydroxyethane-1,1-diphosphonic acid), a phosphonate chelating agent widely used in cosmetic products to sequester metal ions and prevent oxidative rancidity. It is listed under EU Annex III reference no. 53, which sets maximum permitted concentrations in cosmetic products due to concerns about phosphate environmental impact and potential effects on skin at high concentrations.

Skin benefits

  • Chelates metal ions preventing product degradation
  • Extends shelf life of cosmetic formulations

Known concerns

  • EU Annex III restricted with specific concentration limits
  • Environmental concerns regarding phosphates
  • May affect skin barrier at high concentrations

References

EU

EU CosIng database

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

Check your shelf

Find TETRAPOTASSIUM ETIDRONATE in your products.

Scan any cosmetic product with LuxSense to see if it contains TETRAPOTASSIUM ETIDRONATE 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.