Ethyl Ester of Hydrolyzed Keratin

INCI: ETHYL ESTER OF HYDROLYZED KERATIN

CAS Number
Not uniquely assigned (complex mixture); parent: Hydrolyzed Keratin (69430-36-0)
Function
Hair conditioning, film forming, skin conditioning
Safety Rating
EXCELLENT

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR Expert Panel concluded safe in present practices of use and concentration

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

BSE/TSE prion transmission risk if sourced from ruminants — must be free of detectable infectious pathogens; inhalation assessment needed for spray products (used up to 0.059% in aerosolized products)

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Concern Level: Low

Frequently Asked Questions

Is Ethyl Ester of Hydrolyzed Keratin safe in cosmetics?

BSE/TSE prion transmission risk if sourced from ruminants — must be free of detectable infectious pathogens; inhalation assessment needed for spray products (used up to 0.059% in aerosolized products) The EU classifies Ethyl Ester of Hydrolyzed Keratin as "permitted". Safety rating: EXCELLENT.

Is Ethyl Ester of Hydrolyzed Keratin allowed in the EU?

Ethyl Ester of Hydrolyzed Keratin EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Ethyl Ester of Hydrolyzed Keratin do in cosmetics?

Ethyl Ester of Hydrolyzed Keratin functions as: Hair conditioning, film forming, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned (complex mixture); parent: Hydrolyzed Keratin (69430-36-0).

What is the Margin of Safety for Ethyl Ester of Hydrolyzed Keratin?

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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