Phenethyl Methacrylate

INCI: PHENETHYL METHACRYLATE

CAS Number
3683-12-3
Function
Film forming / Fragrance (context-dependent)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status restricted
US Notes Not specifically restricted by FDA for cosmetic use; methacrylate monomers flagged in professional nail product context

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Methacrylate monomers are known skin sensitizers via Michael addition to skin proteins; must be fully polymerized in final product with residual monomer below detection limits due to documented cross-reactivity with other acrylates and methacrylates.

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Concern Level: High

Regulatory Flags

potential-allergen fragrance-component

Frequently Asked Questions

Is Phenethyl Methacrylate safe in cosmetics?

Methacrylate monomers are known skin sensitizers via Michael addition to skin proteins; must be fully polymerized in final product with residual monomer below detection limits due to documented cross-reactivity with other acrylates and methacrylates. The EU classifies Phenethyl Methacrylate as "permitted". Safety rating: MODERATE.

Is Phenethyl Methacrylate allowed in the EU?

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

What does Phenethyl Methacrylate do in cosmetics?

Phenethyl Methacrylate functions as: Film forming / Fragrance (context-dependent). It is classified as a cosmetic ingredient in our database. CAS number: 3683-12-3.

What is the Margin of Safety for Phenethyl Methacrylate?

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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