HC Brown No. 2

INCI: HC BROWN NO. 2

CAS Number
83803-99-0
Function
Hair dyeing — semi-permanent direct dye (brown)
Safety Rating
POOR

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status permitted
US Notes Permitted under coal-tar hair dye exemption (FD&C Act §601(a))

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

EU-banned due to absent safety dossier; SCCNFP concluded use cannot be considered safe. Permitted in US under coal-tar hair dye exemption.

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Concern Level: High

Regulatory Flags

eu_banned_cosmetics eu_cosing_listed

Frequently Asked Questions

Is HC Brown No. 2 safe in cosmetics?

EU-banned due to absent safety dossier; SCCNFP concluded use cannot be considered safe. Permitted in US under coal-tar hair dye exemption. The EU classifies HC Brown No. 2 as "prohibited". Safety rating: POOR.

Is HC Brown No. 2 allowed in the EU?

HC Brown No. 2 EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does HC Brown No. 2 do in cosmetics?

HC Brown No. 2 functions as: Hair dyeing — semi-permanent direct dye (brown). It is classified as a cosmetic ingredient in our database. CAS number: 83803-99-0.

What is the Margin of Safety for HC Brown No. 2?

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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