beauty
cleaning
food
pharma

Ensulizole

CAS 27503-81-7 · 25/100 · High conf.

Uv filter · Fragrance · UV stabilizer

Concern score

25/100Minor concern based on regulatory listings.

Well researched

Why it's flagged

2-Phenylbenzimidazole-5-sulphonic acid and its potassium, sodium and triethanolamine salts / Ensulizole is listed in Annex VI of the EU Cosmetics Regulation (EC) 1223/2009 (UV filters allowed in cosmetic products).

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

No restrictions found. Ensulizole appears in these published regulatory listings.

commercial_presence
consumer_product_presence
cpdat_category:beauty|cleaning|pharma|food
currently_marketed_ndc
definition_level:complete
definition_type:primary
eu_annex:VI
eu_cosmetic_allowed_uv_filter

USFDAmarketed drug occurrence2 entries
- FDA NDC lists this ingredient in 87 active drug products and 90 total products.Source →
- FDA NDC lists this ingredient in 9 active drug products and 9 total products.Source →
EUECallowed_listedAnnex VI of EU Cosmetics Regulation (EC) 1223/2009: UV filters allowed in cosmetic products. Maximum concentration: 8%(as acid)
- Annex VI of EU Cosmetics Regulation (EC) 1223/2009: UV filters allowed in cosmetic products. Maximum concentration: 8%(as acid)Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 152 composition records across product categories including Personal care, Food and drug. EPA CPDat classifies this chemical for functional uses including UV stabilizer, Fragrance.
- EPA CPDat observed this chemical in 152 composition records across product categories including Personal care, Food and drug. EPA CPDat classifies this chemical for functional uses including UV stabilizer, Fragrance.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 Ensulizole. We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.

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.

DairyContains · Oral (ingested)
Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

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.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it appears

Prevalence of Ensulizole in our catalog (epa_cpdat).

Products

152

Brands

Personal careFood and drug

Typical roles

Uv filterFragranceUV stabilizer

See products using Ensulizole →

Catalog

Found in these products

106 products

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Ensulizole in the catalog.

beauty
cleaning
food
pharma