How much products actually contain
No product states its amount yet.
Of the products containing it, 0 list it before the 1% line and 11 after it (usually 1% or less).
Products using this ingredient
11 of 11 confirmed · likeliest to carry enough first
MoetaMoeta Pop Devil Color Correcting Shampoo
IGK HairIGK Hair Color Depositing Gloss Mask - Burning Love
Paul MitchellPaul Mitchell The Demi Color Gloss
HAIRPLUSColor Bond Color Correcting Shampoo 300ml 2-Pack
HAIRPLUSColor Bond Color Correcting Treatment 300ml
HAIRPLUSColor Bond Color Correcting Shampoo 300ml
PUREDERM10 Days Magic Hair Color Treatment (Pink)
PUREDERM10 Days Magic Hair Color Treatment (Purple)
PUREDERM10 Days Magic Hair Color Treatment (Red)
MoroccanoilMoroccanoil Bordeaux Color Depositing Mask
MoroccanoilMoroccanoil Coral Color Depositing Mask
Definition
US FDA substance register · UNII A7A946JJ6I · registered name BASIC RED 51 · single chemical substance
Cosmetic roles
Safety & regulatory references
- Restricted
- Taiwan · United Kingdom
Source: ASEAN Cosmetic Directive · EU Cosmetics Regulation · MFDS (Korea) cosmetic regulatory information · Taiwan FDA cosmetic ingredients · Taiwan FDA cosmetic regulations · UK cosmetics regulations (OPSS)
ASEAN
- Field of application and/or use : (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products
- Maximum authorised concentration in the finished cosmetic product : (b) 1.0%
- Other limitations and requirements : (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1.0% (a) and (b): The direction for use “wear suitable gloves” must be included in label or leaflet text.
- Conditions of use and warning which must be printed on the labels : (a) The mixing ratio must be printed on the label. Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase your risk of allergy. Do not colour your hair if: • you have a rash on your face or sensitive, irritated and damaged scalp, • you have ever experienced any reaction after colouring your hair, • you have experienced a reaction to a temporary “black henna” tattoo in the past (a) & (b) Do not use to dye eyelashes or eyebrows
China
- Maximum concentration : 0.1%
- Maximum concentration : 0.2%
South Korea
- ∙ 1%
European Union
- Product Type, body parts : (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidatie hair dye products
- Maximum concentration in ready for use preparation : (b) 1,0 %
- Other : (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0,5 %
- Wording of conditions of use and warnings : (a) To be printed on the label: The mixing ratio. “ Hair colorants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp, — you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past.â€
Source: MFDS (Korea) cosmetic regulatory information
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
EU Cosmetics Regulation, Annex III (restricted substances), entry 269 · maximum concentration (b) 1,0 % · applies to (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidatie hair dye products
Other restriction: ban substances that deplete the ozone layer · SCCS opinion: Opinion concerning Basic Red 51; Opinion on Basic Red 51
Source: EU CosIng ingredient list
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name 塩基性赤５１: 本品は、次の化学式で表される頭髪用染料である。
Source: JCIA labelling names (Japan)
Names & identifiers
- CAS No.chemical registry number
- 77061-58-6
- EC No.EU chemical inventory number
- 278-601-4
- DTXSIDUS EPA chemical ID
- DTXSID80874049
- DTXCIDUS EPA compound ID
- DTXCID601012183
- IUPAC
- 2-{[4-(Dimethylamino)phenyl]diazenyl}-1,3-dimethyl-1H-imidazol-3-ium chloride
- Molecular formula
- C13H18ClN5
- Molecular weight
- 279.77 g/mol
What products actually use it for
What the 3 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Dye3
Source: US EPA CompTox dashboard
Related literature
- Citotoxic effect of the temporary hair dye basic red 51 on human keratinocytes(HaCaT): development and application on a reconstructed (3D) artificial skin · 2013
- Design and Development of a Shampoo with Dark Semi-Permanent Dyes for Gradual Gray Hair Coverage · 2026
- Functional cardiotoxicity assessment of cosmetic compounds using human-induced pluripotent stem cell-derived cardiomyocytes · 2017
- Basic Red 51, a permitted semi-permanent hair dye, is cytotoxic to human skin cells: Studies in monolayer and 3D skin model using human keratinocytes (HaCaT). · 2014
Linked databases 21
- ASEAN Cosmetic Directive
- Australian Industrial Chemicals Inventory (AICIS)
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- EU Cosmetics Regulation
- EU restricted substances (Annex III)
- EU SCCS safety opinions 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- Korea toxic substances GHS register (NIER)
- MFDS (Korea) cosmetic ingredient register 2
- MFDS (Korea) cosmetic regulatory information 2 3 4
- Taiwan FDA cosmetic ingredients
- Taiwan FDA cosmetic regulations
- Tlooto literature search 2 3 4
- UK cosmetics regulations (OPSS)
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata