Hydroxyethoxyphenol

INCI: HYDROXYETHOXYPHENOL

CAS Number
4792-78-3 (2-(2-hydroxyethoxy)phenol — most probable assignment)
Function
Skin conditioning / antioxidant
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — no CFR restriction identified

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Structurally related to hydroquinone precursors; must confirm no metabolic conversion to hydroquinone in vivo; phenol core necessitates genotoxicity and irritation data; supplier tox dossier essential for CPSR

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Concern Level: Moderate

Frequently Asked Questions

Is Hydroxyethoxyphenol safe in cosmetics?

Structurally related to hydroquinone precursors; must confirm no metabolic conversion to hydroquinone in vivo; phenol core necessitates genotoxicity and irritation data; supplier tox dossier essential for CPSR The EU classifies Hydroxyethoxyphenol as "permitted". Safety rating: MODERATE.

Is Hydroxyethoxyphenol allowed in the EU?

Hydroxyethoxyphenol EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Hydroxyethoxyphenol do in cosmetics?

Hydroxyethoxyphenol functions as: Skin conditioning / antioxidant. It is classified as a cosmetic ingredient in our database. CAS number: 4792-78-3 (2-(2-hydroxyethoxy)phenol — most probable assignment).

What is the Margin of Safety for Hydroxyethoxyphenol?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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