Moderate Cosmetic Ingredient NOAEL Data Sensitization Data

Triethylene Glycol Dimethacrylate (TEGDMA)

INCI: TRIETHYLENE GLYCOL DIMETHACRYLATE

CAS Number
109-16-0
Function
Cross-linking agent, film forming agent (primarily dental/nail applications)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; widely used in dental composites (FDA-cleared medical devices); cosmetic use mainly in nail products

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

7 study endpoints found for Triethylene Glycol Dimethacrylate (TEGDMA). NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 100 mg/kg bw/day dermal code:3543 dermal REACH
LOAEL 500 mg/kg bw/day dermal code:3543 dermal REACH
NOAEL 1522 mg/kg bw/day oral rat oral REACH
LOAEL 100 mg/kg bw/day dermal code:3543 dermal REACH
NOAEL 1522 mg/kg bw/day oral rat oral REACH
NOAEL 100 mg/kg bw/day dermal code:3543 dermal REACH

Sensitization Profile

Contact sensitization data for Triethylene Glycol Dimethacrylate (TEGDMA) based on clinical patch test studies and IFRA standards.

Sensitization Rate
low
Allergen Class
other
EU Allergen Listed
no
Patch Test Positive Rate
0.3%
Cross-reactivity Group
acrylate-group
Reaction Type
contact-dermatitis

Source: IVDK; ESSCA

Expert Verdict

Known contact sensitizer โ€” methacrylate allergy is increasingly reported. Residual monomer must be minimized. Cytotoxic to cells in uncured form. Not recommended for leave-on skin products. Restrict to nail/UV-cured systems with full polymerization verification

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Concern Level: High

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Triethylene Glycol Dimethacrylate (TEGDMA) safe in cosmetics?

Known contact sensitizer โ€” methacrylate allergy is increasingly reported. Residual monomer must be minimized. Cytotoxic to cells in uncured form. Not recommended for leave-on skin products. Restrict to nail/UV-cured systems with full polymerization verification The EU classifies Triethylene Glycol Dimethacrylate (TEGDMA) as "permitted". Safety rating: MODERATE. 7 toxicological study endpoint(s) are available in our database.

Is Triethylene Glycol Dimethacrylate (TEGDMA) allowed in the EU?

Triethylene Glycol Dimethacrylate (TEGDMA) EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Triethylene Glycol Dimethacrylate (TEGDMA) do in cosmetics?

Triethylene Glycol Dimethacrylate (TEGDMA) functions as: Cross-linking agent, film forming agent (primarily dental/nail applications). It is classified as a cosmetic ingredient in our database. CAS number: 109-16-0.

What is the Margin of Safety for Triethylene Glycol Dimethacrylate (TEGDMA)?

adequate 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.

What is the NOAEL for Triethylene Glycol Dimethacrylate (TEGDMA)?

The NOAEL (No Observed Adverse Effect Level) for Triethylene Glycol Dimethacrylate (TEGDMA) is 1000 mg/kg bw/day based on a oral study via oral route in rat. A total of 7 study endpoints are available. Source: REACH.

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