Butylene Glycol Isostearate

INCI: BUTYLENE GLYCOL ISOSTEARATE

CAS Number
Not uniquely assigned in major registries
Function
Skin conditioning, emollient, surfactant – cleansing, surfactant – emulsifying
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Supportable via CIR group review of isostearate esters

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Butylene Glycol Isostearate is permitted for use in cosmetics with no significant safety concerns; supported by CIR group review of isostearate esters.

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Concern Level: Low

Frequently Asked Questions

Is Butylene Glycol Isostearate safe in cosmetics?

Butylene Glycol Isostearate is permitted for use in cosmetics with no significant safety concerns; supported by CIR group review of isostearate esters. The EU classifies Butylene Glycol Isostearate as "permitted". Safety rating: GOOD.

Is Butylene Glycol Isostearate allowed in the EU?

Butylene Glycol Isostearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Butylene Glycol Isostearate do in cosmetics?

Butylene Glycol Isostearate functions as: Skin conditioning, emollient, surfactant – cleansing, surfactant – emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned in major registries.

What is the Margin of Safety for Butylene Glycol Isostearate?

not established 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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