Food use
Food-use source coverage is present in the current record.
The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.
D&C RED NO. 33
Disodium 5-amino-4-hydroxy-3-(phenylazo)naphathlene-2,7-disulphonate (see note 17); (CI 17200) is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.
Research docs0Claims0Sources20Functioncolorant • DyeIdentifier3567-66-6
Concern score
70/100High concern based on regulatory listings.
Well researched
How we scored this
The concern value reflects this ingredient's chemical identity — its hazard profile from the published classifications and regulatory status below — not the safety of a product it appears in. A score near 40 is the baseline for ingredients with no specific signal (water scores 40 by design), so a mid-range value is not a safety verdict.
Concern score 70/100 (high) · high confidence.
Regional restrictions
- EU — restricted · 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 non-oxidative hair dye products Maximum concentration: 0.5 %
Where it appears
Prevalence of D&C RED NO. 33 in our catalog (epa_cpdat).
Products
1,329
Brands
6
Personal careCleaning products and household careFood and drugConstructionCleaning and safety
Typical roles
colorantDyeFragrance
Catalog
Found in these products
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Good fit
Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
Allergen profile
Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.
- GlutenContains · Oral (ingested)
Source: chemindex_name_match
Linked research
Primary documents currently linked to this ingredient record.
No linked research documents are attached to this ingredient yet.
Extracted claims
Structured claim signals pulled from linked ingredient research.
No extracted claims are attached to this ingredient yet.
Regulatory status
Published jurisdiction-level classifications and regulatory designations for this ingredient.
EU
EC
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 non-oxidative hair dye products Maximum concentration: 0.5 %
Effective: 2020-08-14View source →
EU
EC
Annex IV of EU Cosmetics Regulation (EC) 1223/2009: colorants allowed in cosmetic products.
Effective: 2020-08-14View source →
US
EPA
