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pH Adjuster

METHYL DIETHANOLAMINE

CAS 105-59-9 Updated
15

Safety score · 0–100

Avoid

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

About

A tertiary alkanolamine used industrially. PubChem flags reproductive-tox suspicion (H361) and eye irritation; nitrosamine risk also makes it a poor cosmetic choice.

Function

FILM FORMING

Skin benefits

  • Industrial pH-adjusting/buffering agent

Known concerns

  • GHS08 H361 — suspected of damaging fertility or unborn child
  • GHS07 H319/H320 — eye irritation
  • Tertiary amine — nitrosamine formation risk in formulation
  • Inappropriate as a cosmetic ingredient

References

EU

EU CosIng database

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

Related ph adjusters

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BORIC ACID
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DIETHYL ETHANOLAMINE
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SULFURIC ACID
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TRIFLUOROACETIC ACID
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Oxalic acid, its esters and alkaline salts
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DIETHYLAMINE
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 8
MORPHOLINE
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NITROUS 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 — always read the physical product label and consult a healthcare professional for personal concerns.