PEG/PPG-18/18 Isostearate

INCI: PEG/PPG-18/18 ISOSTEARATE

CAS Number
Not individually assigned (PEG/PPG ester of isostearic acid)
Function
Emulsion stabilizing, surfactant-emulsifying
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted for cosmetic use. No specific CIR monograph; supported by class review of PEG esters and isostearates

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

PEG/PPG-18/18 Isostearate is a permitted emulsion stabilizer and surfactant with good safety profile, though residual 1,4-dioxane and ethylene oxide/propylene oxide impurities warrant consideration.

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Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG/PPG-18/18 Isostearate safe in cosmetics?

PEG/PPG-18/18 Isostearate is a permitted emulsion stabilizer and surfactant with good safety profile, though residual 1,4-dioxane and ethylene oxide/propylene oxide impurities warrant consideration. The EU classifies PEG/PPG-18/18 Isostearate as "permitted". Safety rating: GOOD.

Is PEG/PPG-18/18 Isostearate allowed in the EU?

PEG/PPG-18/18 Isostearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PEG/PPG-18/18 Isostearate do in cosmetics?

PEG/PPG-18/18 Isostearate functions as: Emulsion stabilizing, surfactant-emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: Not individually assigned (PEG/PPG ester of isostearic acid).

What is the Margin of Safety for PEG/PPG-18/18 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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