PEG-9 Dimethicone

INCI: PEG-9 DIMETHICONE

CAS Number
68937-54-2
Function
Hair conditioning agent; skin conditioning agent—occlusive/protective
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not restricted by FDA; CIR reviewed PEG/PPG dimethicone family—safe as used

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Potential impurities including 1,4-dioxane and diethylene glycol must be controlled; D4/D5 cyclomethicone traces may raise EU environmental concerns

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Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG-9 Dimethicone safe in cosmetics?

Potential impurities including 1,4-dioxane and diethylene glycol must be controlled; D4/D5 cyclomethicone traces may raise EU environmental concerns The EU classifies PEG-9 Dimethicone as "permitted". Safety rating: GOOD.

Is PEG-9 Dimethicone allowed in the EU?

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

What does PEG-9 Dimethicone do in cosmetics?

PEG-9 Dimethicone functions as: Hair conditioning agent; skin conditioning agent—occlusive/protective. It is classified as a cosmetic ingredient in our database. CAS number: 68937-54-2.

What is the Margin of Safety for PEG-9 Dimethicone?

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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