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Hair Conditioning

BIS-(MORPHOLINOMETHYL C1-4 DIALKOXYSILOXY) DIMETHICONE

55

Safety score · 0–100

Moderate

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

A morpholine-functionalized siloxane used as a hair fixative with flexible humidity hold. Morpholine residues are a notable concern — they are documented sensitizers and can form carcinogenic N-nitrosamines with common nitrosating agents.

Function

HAIR FIXINGHAIR WAVING OR STRAIGHTENING

Skin benefits

  • Reshapes hair with flexible humidity-resistant hold
  • Avoids harsh thiol odor of traditional perm chemistry
  • Useful in temporary styling

Known concerns

  • Morpholine residuals are documented sensitizers and possible N-nitrosamine precursors
  • Morpholine has been detected as nitrosamine contaminant in regulatory testing
  • Alkoxysilane groups may release methanol/ethanol on hydrolysis

References

EU

EU CosIng database

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

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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.