Methacryloyl Hydrolyzed Soy Protein

INCI: METHACRYLOYL HYDROLYZED SOY PROTEIN

CAS Number
Not assigned as a single CAS (reaction product of methacrylic anhydride + hydrolyzed soy protein; parent hydrolyzed soy protein CAS: 68607-88-5)
Function
Antioxidant, hair conditioning, hair waving/straightening, skin conditioning, skin protecting
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status prohibited
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Allowed - not specifically restricted. CIR Expert Panel concluded soy proteins and peptides are safe in cosmetics at present use concentrations

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Potential soy allergen sensitization; the methacryloyl moiety is a reactive monomer - residual unreacted monomer could be an irritant. A modified protein with a polymerizable methacrylic group that enables covalent bonding onto hair keratin during waving/straightening processes, improving protein retention and conditioning durability

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Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Methacryloyl Hydrolyzed Soy Protein safe in cosmetics?

Potential soy allergen sensitization; the methacryloyl moiety is a reactive monomer - residual unreacted monomer could be an irritant. A modified protein with a polymerizable methacrylic group that enables covalent bonding onto hair keratin during waving/straightening processes, improving protein retention and conditioning durability The EU classifies Methacryloyl Hydrolyzed Soy Protein as "prohibited". Safety rating: MODERATE.

Is Methacryloyl Hydrolyzed Soy Protein allowed in the EU?

Methacryloyl Hydrolyzed Soy Protein EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Methacryloyl Hydrolyzed Soy Protein do in cosmetics?

Methacryloyl Hydrolyzed Soy Protein functions as: Antioxidant, hair conditioning, hair waving/straightening, skin conditioning, skin protecting. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned as a single CAS (reaction product of methacrylic anhydride + hydrolyzed soy protein; parent hydrolyzed soy protein CAS: 68607-88-5).

What is the Margin of Safety for Methacryloyl Hydrolyzed Soy Protein?

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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