Moderate Cosmetic Ingredient

Cystamine Dimaleate

INCI: CYSTAMINE DIMALEATE

CAS Number
Not clearly established for the specific dimaleate cosmetic grade; cystamine base CAS often cited as 56-17-7, but salt-specific CAS not consistently reported in cosmetic use
Function
Hair bond builder, hair conditioning, disulfide-bond re-linking in professional hair products
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Not specifically regulated as a cosmetic ingredient by FDA; allowed under general safety requirement of the FD&C Act

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Potential skin and eye irritant with possible sensitization risk; use primarily in rinse-off and professional hair treatments, avoiding damaged scalp and protecting eyes and skin. pH control and patch testing recommended during product development.

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Concern Level: Moderate

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Cystamine Dimaleate safe in cosmetics?

Potential skin and eye irritant with possible sensitization risk; use primarily in rinse-off and professional hair treatments, avoiding damaged scalp and protecting eyes and skin. pH control and patch testing recommended during product development. The EU classifies Cystamine Dimaleate as "prohibited". Safety rating: MODERATE.

Is Cystamine Dimaleate allowed in the EU?

Cystamine Dimaleate EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Cystamine Dimaleate do in cosmetics?

Cystamine Dimaleate functions as: Hair bond builder, hair conditioning, disulfide-bond re-linking in professional hair products. It is classified as a cosmetic ingredient in our database. CAS number: Not clearly established for the specific dimaleate cosmetic grade; cystamine base CAS often cited as 56-17-7, but salt-specific CAS not consistently reported in cosmetic use.

What is the Margin of Safety for Cystamine Dimaleate?

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 Cystamine Dimaleate compliance across multiple jurisdictions:

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Ingredient Decoder
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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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