Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Sensitization Profile
Contact sensitization data for HC Blue No. 11 based on clinical patch test studies and IFRA standards.
Source: SCCS; IVDK
Expert Verdict
N-Nitrosodiethanolamine (NDELA) impurity must be <50 ppb; classified as carcinogen under EU regulations; mandatory allergy warning label required.
Frequently Asked Questions
Is HC Blue No. 11 safe in cosmetics?
N-Nitrosodiethanolamine (NDELA) impurity must be <50 ppb; classified as carcinogen under EU regulations; mandatory allergy warning label required. The EU classifies HC Blue No. 11 as "prohibited". Safety rating: MODERATE.
Is HC Blue No. 11 allowed in the EU?
HC Blue No. 11 EU regulatory status: prohibited. Maximum allowed concentration: 3.0%. This is based on EU Regulation 1223/2009 and its amendments.
What does HC Blue No. 11 do in cosmetics?
HC Blue No. 11 functions as: Hair dyeing (direct/semi-permanent nitro dye). It is classified as a cosmetic ingredient in our database. CAS number: 910463-51-3.
What is the Margin of Safety for HC Blue No. 11?
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.
Compliance Tools
Check HC Blue No. 11 compliance across multiple jurisdictions:
Related Ingredients
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