Fragrance avoidance
No fragrance-linked caution surfaced in the current profile.
This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.
- beauty
6-Hydroxyindole
CAS 2380-86-1 · 70/100 · High conf.
Dye
Concern score
70/100High concern based on regulatory listings.
Well researched
Why it's flagged
1H-Indol-6-ol is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.
RestrictedEU EC — restricted
The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.
Regulation
Restrictions first, then routine listings from published regulatory sources.
- commercial_presence
- consumer_product_presence
- cpdat_category:beauty
- definition_level:complete
- definition_type:primary
- eu_annex:III
- eu_cosmetic_restricted
- ingredient_type:ingredient substance
- View source →restricted
EUEC
Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Hair dye substance in oxidative hair dye products Other conditions: After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 0,5%. Conditions of use and warnings: To be printied on the label: Hair colorants can cause severe allergic reactions.
USEPAcommercial use observedEPA CPDat observed this chemical in 91 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Dye.
- EPA CPDat observed this chemical in 91 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Dye.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Evidence
No graded sources yet for 6-Hydroxyindole. We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Good fit
Where it appears
Prevalence of 6-Hydroxyindole in our catalog (epa_cpdat).
Products
91
Brands
5
Personal care
Typical roles
Dye
Found in these products
- Paris Superior Preference 5CB Medium Chestnut Brown Warmer HaircolorL'Oréal · Hair ColorCritical
- Casting Creme Gloss 415 Marron GlaceL'OREAL NORGE AS · Non Food ProductsCritical
- Casting Creme Gloss 600 Blond FonceL'OREAL NORGE AS · Non Food ProductsCritical
- Фарба для волосся L'Oreal Paris Preference 5.0L’Oréal · Permanent Hair ColorCritical
- Nutrisse 4.15 Marron GlaceL'OREAL NORGE AS · Non Food ProductsCritical
- Nutrisse 3.23 BrunL'OREAL NORGE AS · Non Food ProductsCritical
- Preferance 4.15 CaracasL'OREAL NORGE AS · Non Food ProductsCritical
- Excellence 5.3 Lys GyldenbrunL'OREAL NORGE AS · Non Food ProductsCritical
- Excellence 9 Meget Lys BlondL'OREAL NORGE AS · Non Food ProductsCritical
