Hydrolyzed Sulfonated Keratin

INCI: HYDROLYZED SULFONATED KERATIN

CAS Number
Not specifically assigned (parent Hydrolyzed Keratin CAS 69430-36-0)
Function
Hair conditioning, film forming, skin conditioning
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” CIR reviewed (2016); concluded safe in present practices of use; noted not currently in use in VCRP at time of review

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

CIR concluded safe when molecular weight is โ‰ค3.5 kDa; sulfonation process must not introduce residual sulfonate reagents above acceptable limits; source animal (wool, feather, human hair) must be declared for BSE/TSE compliance.

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Concern Level: Low

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Hydrolyzed Sulfonated Keratin safe in cosmetics?

CIR concluded safe when molecular weight is โ‰ค3.5 kDa; sulfonation process must not introduce residual sulfonate reagents above acceptable limits; source animal (wool, feather, human hair) must be declared for BSE/TSE compliance. The EU classifies Hydrolyzed Sulfonated Keratin as "permitted". Safety rating: GOOD.

Is Hydrolyzed Sulfonated Keratin allowed in the EU?

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

What does Hydrolyzed Sulfonated Keratin do in cosmetics?

Hydrolyzed Sulfonated Keratin functions as: Hair conditioning, film forming, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: Not specifically assigned (parent Hydrolyzed Keratin CAS 69430-36-0).

What is the Margin of Safety for Hydrolyzed Sulfonated 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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