Moderate Cosmetic Ingredient

Hydrogenated Castor Oil Stearyl Esters

INCI: HYDROGENATED CASTOR OIL STEARYL ESTERS

CAS Number
Not publicly assigned (complex ester mixture)
Function
Emulsion stabilising, hair conditioning, skin conditioning
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — no CFR restriction; not separately reviewed by CIR

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

No published adverse event data; limited standalone safety data; read-across from HCO and stearyl alcohol required for CPSR

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Concern Level: Moderate

Regulatory Flags

plant-oil

Frequently Asked Questions

Is Hydrogenated Castor Oil Stearyl Esters safe in cosmetics?

No published adverse event data; limited standalone safety data; read-across from HCO and stearyl alcohol required for CPSR The EU classifies Hydrogenated Castor Oil Stearyl Esters as "permitted". Safety rating: MODERATE.

Is Hydrogenated Castor Oil Stearyl Esters allowed in the EU?

Hydrogenated Castor Oil Stearyl Esters EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Hydrogenated Castor Oil Stearyl Esters do in cosmetics?

Hydrogenated Castor Oil Stearyl Esters functions as: Emulsion stabilising, hair conditioning, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: Not publicly assigned (complex ester mixture).

What is the Margin of Safety for Hydrogenated Castor Oil Stearyl Esters?

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.

Compliance Tools

Check Hydrogenated Castor Oil Stearyl Esters compliance across multiple jurisdictions:

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Ingredient Decoder
Paste a full ingredient list for instant analysis
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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