Polyglyceryl-3 Stearate SE

INCI: POLYGLYCERYL-3 STEARATE SE

CAS Number
Based on Polyglyceryl-3 Stearate: 26855-43-6 / 27321-72-8 (SE grade contains added Na/K stearate)
Function
Surfactant – emulsifying agent (self-emulsifying grade)
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes CIR: Covered under the 274 polyglyceryl fatty acid esters — safe in present practices of use when formulated to be non-irritating (2023)

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

SE grade contains alkali stearate soaps (Na/K stearate) — inherently alkaline; pH adjustment required for skin-compatible formulations (target pH 4.5–6.5). Animal-origin possible — confirm plant-derived if COSMOS certification needed.

⚠️
Concern Level: None

Regulatory Flags

natural-origin

Frequently Asked Questions

Is Polyglyceryl-3 Stearate SE safe in cosmetics?

SE grade contains alkali stearate soaps (Na/K stearate) — inherently alkaline; pH adjustment required for skin-compatible formulations (target pH 4.5–6.5). Animal-origin possible — confirm plant-derived if COSMOS certification needed. The EU classifies Polyglyceryl-3 Stearate SE as "permitted". Safety rating: EXCELLENT.

Is Polyglyceryl-3 Stearate SE allowed in the EU?

Polyglyceryl-3 Stearate SE EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Polyglyceryl-3 Stearate SE do in cosmetics?

Polyglyceryl-3 Stearate SE functions as: Surfactant – emulsifying agent (self-emulsifying grade). It is classified as a cosmetic ingredient in our database. CAS number: Based on Polyglyceryl-3 Stearate: 26855-43-6 / 27321-72-8 (SE grade contains added Na/K stearate).

What is the Margin of Safety for Polyglyceryl-3 Stearate SE?

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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