Is HC Violet No. 4 safe in cosmetics?
HC Violet No. 4 has a safety rating of "MODERATE" in our database. EU status: prohibited. US status: permitted.
MODERATE
Cosmetic Ingredient
HC Violet No. 4
INCI: HC VIOLET NO. 4
HC Violet No. 4 (CAS 56330-88-2 *(verify against CosIng — not confirmed in retrieved sources)*) is a cosmetic cosmetic ingredient functioning as Hair dyeing — semi-permanent (direct) nitro dye. EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database.
CAS Number
56330-88-2 *(verify against CosIng — not confirmed in retrieved sources)*
View industrial chemical safety profile →
Function
Hair dyeing — semi-permanent (direct) nitro dye
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
prohibited
US US Status
permitted
US Notes
Permitted — exempt from color additive certification under FD&C Act §601(a) coal-tar hair dye exemption; requires caution labeling and patch test instructions
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for HC Violet No. 4.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for HC Violet No. 4 — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is HC Violet No. 4 allowed in the EU?
HC Violet No. 4 EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does HC Violet No. 4 do in cosmetics?
HC Violet No. 4 functions as: Hair dyeing — semi-permanent (direct) nitro dye. It is classified as a cosmetic ingredient in our database. CAS number: 56330-88-2 *(verify against CosIng — not confirmed in retrieved sources)*.
Compliance Tools
Check HC Violet No. 4 compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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