Isobutylene/Sodium Maleate Copolymer

INCI: ISOBUTYLENE/SODIUM MALEATE COPOLYMER

CAS Number
25266-02-8 (sodium salt form)
Function
Film forming; viscosity controlling
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no specific CFR restriction

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Sodium maleate salt form is less irritating than anhydride form with similar residual monomer considerations; product pH should be confirmed as maleate salts can shift pH.

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Concern Level: Low

Frequently Asked Questions

Is Isobutylene/Sodium Maleate Copolymer safe in cosmetics?

Sodium maleate salt form is less irritating than anhydride form with similar residual monomer considerations; product pH should be confirmed as maleate salts can shift pH. The EU classifies Isobutylene/Sodium Maleate Copolymer as "permitted". Safety rating: GOOD.

Is Isobutylene/Sodium Maleate Copolymer allowed in the EU?

Isobutylene/Sodium Maleate Copolymer EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Isobutylene/Sodium Maleate Copolymer do in cosmetics?

Isobutylene/Sodium Maleate Copolymer functions as: Film forming; viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: 25266-02-8 (sodium salt form).

What is the Margin of Safety for Isobutylene/Sodium Maleate Copolymer?

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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