Isosteareth-2

INCI: ISOSTEARETH-2

CAS Number
52292-17-8
Function
Surfactant — cleansing, emulsifying
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — not listed in 21 CFR 700; steareth-2 (CAS 9005-00-9) with analogous structure reviewed by CIR

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

1,4-dioxane and ethylene oxide residues present; lower ethoxylation results in higher lipophilicity and slightly greater dermal absorption potential compared to higher ethoxylated homologs. ECHA notifications indicate no hazard classification in 97.4% of cases.

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Concern Level: Moderate

Frequently Asked Questions

Is Isosteareth-2 safe in cosmetics?

1,4-dioxane and ethylene oxide residues present; lower ethoxylation results in higher lipophilicity and slightly greater dermal absorption potential compared to higher ethoxylated homologs. ECHA notifications indicate no hazard classification in 97.4% of cases. The EU classifies Isosteareth-2 as "permitted". Safety rating: GOOD.

Is Isosteareth-2 allowed in the EU?

Isosteareth-2 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Isosteareth-2 do in cosmetics?

Isosteareth-2 functions as: Surfactant — cleansing, emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 52292-17-8.

What is the Margin of Safety for Isosteareth-2?

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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