AKA: 2455-24-5, Sartomer SR 203, 2-Propenoic acid, (tetrahydro-2-furanyl)methyl ester, Methacrylic acid tetrahydrofurfuryl ester, Tetrahydrofurfurylmethacrylate, Methacrylic acid, Tetrahydrofurfuryl ester, SR 203, ACRYESTER THF
WHAT IS IT? Synthetic
Occlusive
Not Clean
Origin Derived from furfuryl alcohol and methacrylic acid, both petroleum-based organic compounds. Synthesized through esterification reaction between furfuryl alcohol and methacrylic acid or its derivatives.
2-Propenoic Acid, 2-Methyl-, (Tetrahydro-2-Furanyl)Methyl Ester
IS IT FOR ME? Pregnancy & Breastfeeding Safe
Caution
WHAT’S IT DO? Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Creates Protective Barrier
CAN I TRUST THIS? The paper trail
🛡️ Safety-assessed 2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
IS IT CLEAN? CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing / plus 3 case reports (CIR 339)
Concentration Guide
0% 50% 100%
CIR reported use · 2020 survey
Regulatory Status
JAPAN ⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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