Moderate Cosmetic Ingredient NOAEL Data

PEG-9 Trimethylolpropane Triacrylate

INCI: PEG-9 TRIMETHYLOLPROPANE TRIACRYLATE

CAS Number
28961-43-5
Function
Skin Conditioning
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for cosmetic use; acrylates copolymers class reviewed by CIR

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

1 study endpoint found for PEG-9 Trimethylolpropane Triacrylate. 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 75 mg/kg bw/day oral rat oral REACH

Expert Verdict

Residual acrylic monomers (methyl/ethyl acrylate) are potent contact sensitizers; must verify residual monomer levels below specification limits; monitor for 1,4-dioxane residuals

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Concern Level: Moderate

Regulatory Flags

potential-allergen peg-ingredient

Frequently Asked Questions

Is PEG-9 Trimethylolpropane Triacrylate safe in cosmetics?

Residual acrylic monomers (methyl/ethyl acrylate) are potent contact sensitizers; must verify residual monomer levels below specification limits; monitor for 1,4-dioxane residuals The EU classifies PEG-9 Trimethylolpropane Triacrylate as "permitted". Safety rating: MODERATE. 1 toxicological study endpoint(s) are available in our database.

Is PEG-9 Trimethylolpropane Triacrylate allowed in the EU?

PEG-9 Trimethylolpropane Triacrylate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PEG-9 Trimethylolpropane Triacrylate do in cosmetics?

PEG-9 Trimethylolpropane Triacrylate functions as: Skin Conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 28961-43-5.

What is the Margin of Safety for PEG-9 Trimethylolpropane Triacrylate?

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 PEG-9 Trimethylolpropane Triacrylate?

The NOAEL (No Observed Adverse Effect Level) for PEG-9 Trimethylolpropane Triacrylate is 75 mg/kg bw/day based on a oral study via oral route in rat. Source: REACH.

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