AKA “33229-34-4, HC Blue 2, NCI-C54897, DTXSID6020193, 6C0EL1931V, Ethanol, 2, 2'-((4-((2-hydroxyethyl)amino)-3-nitrophenyl)imino)di-, DTXCID80193, N1, N4, N4-Tris(2-hydroxyethyl)-2-nitro-p-phenylenediamine, COVARINE BLUE W 6122”
Ingredient
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Ingredient Facts
Hc blue no. 2
AKA: 33229-34-4, HC Blue 2, NCI-C54897, DTXSID6020193, 6C0EL1931V, Ethanol, 2'-((4-((2-hydroxyethyl)amino)-3-nitrophenyl)imino)di-, DTXCID80193, N1, N4, N4-Tris(2-hydroxyethyl)-2-nitro-p-phenylenediamine, COVARINE BLUE W 6122
Hc blue 2 is a dark blue to dark brown microcrystalline powder. (NTP, 1992)
See origin →
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic aromatic dye developed for the hair care industry in the mid-20th century to provide blue coloring in semi-permanent hair color products with improved stability and fade resistance.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
Allergen Warning
⚠️ PPD (Hair Dye)
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Concentration Guide
2.8%
0%4%
Reg. Limit
EU regulatory limit: 2.8%. Can cause allergic reaction Source: EU Cosmetics Regulation (EC) 1223/2009, Annex III (Restricted Substances), Entry 247.