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pH Adjuster

TRONA

CAS -
80

Safety score · 0–100

Good

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

A naturally occurring sodium carbonate/bicarbonate mineral used as a buffering and pH-adjusting agent in cosmetics. Well tolerated when used at appropriate concentrations, mainly in rinse-off and cleansing formulations.

Skin benefits

  • Naturally occurring mineral buffer
  • Useful for pH adjustment in cleansing products
  • Mild alkaline effect, well tolerated when neutralized
  • Soft, low-irritation mineral particulate

Known concerns

  • Highly alkaline if used at high concentrations on skin
  • May cause minor irritation in leave-on products if unbuffered

References

EU

EU CosIng database

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

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TARTARIC ACID
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Check your shelf

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.