Good Cosmetic Ingredient

PEG/PPG-24/18 Butyl Ether Dimethicone

INCI: PEG/PPG-24/18 BUTYL ETHER DIMETHICONE

CAS Number
68937-54-2 (generic)
Function
Surfactant, emulsifying agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Not restricted by FDA; CIR group assessment — safe as used (listed in 2014 panel review)

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Contains potential 1,4-dioxane and ethylene oxide residuals; may contain trace D4/D5 siloxanes; structurally analogous to PEG/PPG-23/23 butyl ether dimethicone.

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Concern Level: Low

Regulatory Flags

peg-ingredient

Frequently Asked Questions

Is PEG/PPG-24/18 Butyl Ether Dimethicone safe in cosmetics?

Contains potential 1,4-dioxane and ethylene oxide residuals; may contain trace D4/D5 siloxanes; structurally analogous to PEG/PPG-23/23 butyl ether dimethicone. The EU classifies PEG/PPG-24/18 Butyl Ether Dimethicone as "permitted". Safety rating: GOOD.

Is PEG/PPG-24/18 Butyl Ether Dimethicone allowed in the EU?

PEG/PPG-24/18 Butyl Ether Dimethicone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PEG/PPG-24/18 Butyl Ether Dimethicone do in cosmetics?

PEG/PPG-24/18 Butyl Ether Dimethicone functions as: Surfactant, emulsifying agent. It is classified as a cosmetic ingredient in our database. CAS number: 68937-54-2 (generic).

What is the Margin of Safety for PEG/PPG-24/18 Butyl Ether 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.

Compliance Tools

Check PEG/PPG-24/18 Butyl Ether Dimethicone compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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