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pH Adjuster

SODIUM SESQUICARBONATE

CAS 533-96-0 Updated
78

Safety score · 0–100

Fine

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

About

A double salt of sodium carbonate and sodium bicarbonate. Used as a mild pH adjuster and water-softener; safe at cosmetic dilutions.

Function

BUFFERINGBULKINGCLEANSING

Skin benefits

  • pH adjuster and buffer
  • Effective in bath salts and cleansers
  • Mild alkalinity

Known concerns

  • Mild eye and skin irritant in concentrated form
  • Alkaline at higher %

References

EU

EU CosIng database

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

Related ph adjusters

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ADIPIC ACID
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AMINOETHYL PROPANEDIOL
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AMMONIUM BICARBONATE
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CALCIUM CHLORIDE
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DISODIUM ITACONATE
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FUMARIC ACID
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MAGNESIUM NITRATE
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SEBACIC ACID
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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.