Poloxamer 403

INCI: POLOXAMER 403

CAS Number
9003-11-6 (generic for all Poloxamers)
Function
Surfactant – Cleansing; Surfactant – Emulsifying
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes FDA indirect food additive; CIR assessed as safe as used (2008 final report)

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

Residual 1,4-dioxane, ethylene oxide and propylene oxide from ethoxylation must be purified to established limits; no reproductive or developmental toxicity data but CIR deemed risk negligible due to molecular weight.

⚠️
Concern Level: Low

Frequently Asked Questions

Is Poloxamer 403 safe in cosmetics?

Residual 1,4-dioxane, ethylene oxide and propylene oxide from ethoxylation must be purified to established limits; no reproductive or developmental toxicity data but CIR deemed risk negligible due to molecular weight. The EU classifies Poloxamer 403 as "permitted". Safety rating: GOOD.

Is Poloxamer 403 allowed in the EU?

Poloxamer 403 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Poloxamer 403 do in cosmetics?

Poloxamer 403 functions as: Surfactant – Cleansing; Surfactant – Emulsifying. It is classified as a cosmetic ingredient in our database. CAS number: 9003-11-6 (generic for all Poloxamers).

What is the Margin of Safety for Poloxamer 403?

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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