PEG-4 Isostearate

INCI: PEG-4 ISOSTEARATE

CAS Number
56002-14-3
Function
Surfactant – Emulsifying
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes CIR-reviewed as part of PEG esters group; safe as used when formulated to be non-irritating

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

1,4-Dioxane and ethylene oxide residues from ethoxylation; concern on damaged skin

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Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG-4 Isostearate safe in cosmetics?

1,4-Dioxane and ethylene oxide residues from ethoxylation; concern on damaged skin The EU classifies PEG-4 Isostearate as "permitted". Safety rating: GOOD.

Is PEG-4 Isostearate allowed in the EU?

PEG-4 Isostearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PEG-4 Isostearate do in cosmetics?

PEG-4 Isostearate functions as: Surfactant – Emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 56002-14-3.

What is the Margin of Safety for PEG-4 Isostearate?

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.

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