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TETRAHYDROFURFURYL METHACRYLATE.

Avoid CAS 2455-24-5 / FILM FORMING

Tetrahydrofurfuryl Methacrylate is an acrylic resin comonomer primarily utilized in forming hard polymer coatings. It functions as a film former, reacting with other ingredients to create durable structures, most notably in nail enhancement products where direct skin contact is strictly avoided.

Summary

Film Forming

Science

Mechanism of Action

This ingredient operates as a monomer, actively engaging in polymerization reactions to establish robust, cross-linked polymer networks. It serves as an acrylic resin comonomer, enhancing adhesion and contributing to the formation of elastomers, particularly in non-skin cosmetic applications like nail polishes. In biological systems, it can undergo ester hydrolysis, metabolizing into (meth)acrylic acid and tetrahydrofurfuryl alcohol.

Research

Clinical Evidence

Medium confidence
Effective range 2–85%
Optimal

38.2%

Transparency

Dusting Analysis

Not commonly dusted

This ingredient is a functional monomer and film-former, not typically 'dusted' or over-marketed for direct skin benefits. Its application is highly specialized for creating polymer coatings.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Tetrahydrofurfuryl Methacrylate is inherently sensitive to light and heat, necessitating storage in dark, dry, sealed conditions at room temperature to prevent premature polymerization. It readily cross-links upon exposure to heat, peroxide catalysts, or UV radiation. Formulations must incorporate inhibitors, which require dissolved oxygen, and maintain the original headspace in packaging to ensure stability.

Conflicts

  • strong heating
  • peroxide catalysts
  • UV radiation
  • various incompatible materials

Safety

Safety Profile

CIR Status
Safe with restrictions
Max tested
38.2%
Sensitization risk High

The CIR Expert Panel deems Tetrahydrofurfuryl Methacrylate safe specifically for use in nail enhancement products, contingent upon the strict avoidance of skin contact due to its significant sensitizing potential. This restriction was reaffirmed in 2021–2022. The European Chemicals Agency (ECHA) is actively reviewing this substance for further regulatory risk management actions, citing concerns about its potential metabolite, tetrahydrofurfuryl alcohol, which carries a reproductive toxicity hazard profile. No specific FDA status is provided, though it is listed on the US TSCA Section 8(d) for Health and Safety Data Reporting.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy High
Comedogenicity Unknown

Our Assessment

Verdict

Avoid

Due to its high irritancy, significant sensitizing potential, and explicit directives to avoid skin contact, Tetrahydrofurfuryl Methacrylate is unsuitable for direct application in skincare formulations.

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