Tetrahydrofurfuryl Methacrylate

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
Synthetic
Occlusive
Not Clean
2-Propenoic Acid, 2-Methyl-, (Tetrahydro-2-Furanyl)Methyl Ester
Effective at 22.4%
Formula
C9H14O3
Mol. Weight
170.21
CAS #
2455-24-5
Form
Liquid
State
Liquid
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
Traditional Use
Synthetic polymer developed in the mid-20th century for cosmetic film-forming and styling applications. Used in hair and nail products to create lasting hold without traditional historical use.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
6.6%
38.2%
0%53%
Reported use
CIR reported use: 6.6-10 | 20.6-38.2
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR