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Skin Conditioning

PHENYLETHYL RESORCINOL

CAS 85-27-8 Updated
75

Safety score · 0–100

Fine

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

About

Symwhite 377 — a resorcinol-based brightening active that inhibits melanin enzymes. Good results clinically; dosed low because resorcinols carry historic thyroid caveats at higher doses.

Skin benefits

  • Effective skin-brightening active
  • Inhibits tyrosinase
  • Antioxidant resorcinol derivative
  • Stable in formulas

Known concerns

  • Resorcinol class has thyroid concerns at high oral doses
  • Possible mild irritation in sensitive skin

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 — always read the physical product label and consult a healthcare professional for personal concerns.