Amidinocysteinyl Hydrolyzed Keratin

INCI: AMIDINOCYSTEINYL HYDROLYZED KERATIN

CAS Number
Not assigned (polymer/protein conjugate)
Function
Hair conditioning, astringent, film forming, hair waving/straightening
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Not restricted by FDA; hydrolyzed keratins reviewed by CIR as a class (safe as used)

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Dual function as conditioning agent and chemical hair modifier; ensure pH and concentration are within supplier specifications to avoid scalp irritation

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Concern Level: Moderate

Frequently Asked Questions

Is Amidinocysteinyl Hydrolyzed Keratin safe in cosmetics?

Dual function as conditioning agent and chemical hair modifier; ensure pH and concentration are within supplier specifications to avoid scalp irritation The EU classifies Amidinocysteinyl Hydrolyzed Keratin as "prohibited". Safety rating: GOOD.

Is Amidinocysteinyl Hydrolyzed Keratin allowed in the EU?

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

What does Amidinocysteinyl Hydrolyzed Keratin do in cosmetics?

Amidinocysteinyl Hydrolyzed Keratin functions as: Hair conditioning, astringent, film forming, hair waving/straightening. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (polymer/protein conjugate).

What is the Margin of Safety for Amidinocysteinyl Hydrolyzed Keratin?

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.

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