Skin Conditioning
4-ETHYLRESORCINOL
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A potent skin-brightening resorcinol derivative used at low %. PubChem flags multiple irritation hazards (H315/H319/H335), placing it in the use-with-awareness orange tier.
Function
Skin benefits
- Tyrosinase-inhibitor brightening agent
- Effective at low %
- Smaller molecule with skin penetration
Known concerns
- Causes skin irritation (H315)
- Causes serious eye irritation (H319)
- May cause respiratory irritation (H335)
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related skin conditionings
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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.