Skip to content

pH Adjuster

Potassium or sodium hydroxide

CAS 1310-58-3 / 1310-73-2 Updated
72

Safety score · 0–100

Fine

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

About

Potassium and sodium hydroxide — strong alkalis used at low residual levels to set pH and neutralise acids in cosmetic formulations. Safe in finished product, corrosive in concentrate.

Skin benefits

  • pH neutralisation
  • Saponification
  • Formulation stability

Known concerns

  • Corrosive in concentrate
  • Skin and eye burns at high pH
  • Use only at neutralised residual levels

References

EU

EU CosIng database

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

Related ph adjusters

72
3-HYDROXYPROPIONIC ACID
pH Adjuster
 72
AMINOMETHYL PROPANEDIOL
pH Adjuster
 72
DIAMMONIUM PHOSPHATE
pH Adjuster
 72
MALIC ACID
pH Adjuster
 72
METHYLGLUCAMINE HCL
pH Adjuster
 72
RED RICE VINEGAR
pH Adjuster
 72
SACCHARATED LIME
pH Adjuster
 72
SODIUM HYDROXIDE
pH Adjuster

Check your shelf

Find Potassium or sodium hydroxide in your products.

Scan any cosmetic product with LuxSense to see if it contains Potassium or sodium hydroxide 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.