PEG-9 Glyceryl Isostearate

INCI: PEG-9 GLYCERYL ISOSTEARATE

CAS Number
Not uniquely assigned (falls under PEGylated alkyl glycerides family)
Function
Skin conditioning agent—emollient; surfactant—emulsifying agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not restricted by FDA; CIR PEGylated alkyl glycerides assessment: safe in current practices when formulated to be nonirritating

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

Must be formulated to be nonirritating; 1,4-dioxane control required; isostearic acid moiety is well-tolerated

⚠️
Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG-9 Glyceryl Isostearate safe in cosmetics?

Must be formulated to be nonirritating; 1,4-dioxane control required; isostearic acid moiety is well-tolerated The EU classifies PEG-9 Glyceryl Isostearate as "permitted". Safety rating: GOOD.

Is PEG-9 Glyceryl Isostearate allowed in the EU?

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

What does PEG-9 Glyceryl Isostearate do in cosmetics?

PEG-9 Glyceryl Isostearate functions as: Skin conditioning agent—emollient; surfactant—emulsifying agent. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned (falls under PEGylated alkyl glycerides family).

What is the Margin of Safety for PEG-9 Glyceryl 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.

📱

Is PEG-9 Glyceryl Isostearate in Your Products?

Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free →

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for PEG-9 Glyceryl Isostearate in your formulation.