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Skin brightening active

METHOXYPHENYL T-BUTYLPHENYL PROPANEDIOL

CAS 955359-35-0
72

Safety score · 0–100

Fine

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

A synthetic propanediol marketed as SymWhite that brightens skin by inhibiting melanin synthesis and reducing yellow tones. EU-approved with a clean cosmetic safety profile to date, though long-term chronic-use data remain limited.

Skin benefits

  • Skin brightening agent that reduces yellow b* parameter
  • Inhibits melanin biosynthesis in clinical studies
  • Listed on EU CosIng and stable in finished formulas

Known concerns

  • Limited long-term safety data on chronic use
  • Skin lightening actives can cause irritation in sensitive users
  • Substituted phenol structure warrants ongoing monitoring

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.