Glyceryl Isostearates

INCI: GLYCERYL ISOSTEARATES

CAS Number
66085-00-5 / 61332-02-3 (shared with Glyceryl Isostearate; "Isostearates" denotes the mono/di/tri mixture)
Function
Skin conditioning agent — emollient; emulsifying agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR: safe in present practices of use; 2 uses reported in RLD 2024 (makeup preparations)

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Distinct from Glyceryl Isostearate (monoester only); ensure INCI precision on labeling; currently under re-review by CIR Panel (March 2025 meeting)

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Concern Level: Low

Frequently Asked Questions

Is Glyceryl Isostearates safe in cosmetics?

Distinct from Glyceryl Isostearate (monoester only); ensure INCI precision on labeling; currently under re-review by CIR Panel (March 2025 meeting) The EU classifies Glyceryl Isostearates as "permitted". Safety rating: GOOD.

Is Glyceryl Isostearates allowed in the EU?

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

What does Glyceryl Isostearates do in cosmetics?

Glyceryl Isostearates functions as: Skin conditioning agent — emollient; emulsifying agent. It is classified as a cosmetic ingredient in our database. CAS number: 66085-00-5 / 61332-02-3 (shared with Glyceryl Isostearate; "Isostearates" denotes the mono/di/tri mixture).

What is the Margin of Safety for Glyceryl Isostearates?

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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