Fragrance avoidance
Not a strong fit for fragrance avoidance because it carries Fragrance.
The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.
Hydroquinone
EPA CPDat observed this chemical in 1954 composition records across product categories including Cons. electronics, mech. appliances, and machinery, Laboratory supplies, Specialty occupational products.
Research docs0Claims0Sources7FunctionAntioxidant • Bleaching agentIdentifierDTXSID7020716
Concern score
65/100High 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 65/100 (high) · high confidence.
Regional restrictions
- CA — restricted · Restricted by the Health Canada Cosmetic Ingredient Hotlist for cosmetics.
Where it appears
Prevalence of Hydroquinone in our catalog (epa_cpdat).
Products
1,954
Brands
6
Cons. electronics, mech. appliances, and machineryLaboratory suppliesSpecialty occupational productsMedical/dentalBatteriesIndustrial products
Typical roles
AntioxidantBleaching agentdiolsDyeFlavouring and nutrient
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Avoid
Evidence read
The published evidence profile currently shaping this ingredient record.
No evidence profiles are attached to this ingredient yet.
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
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.
CA
Health Canada
Restricted by the Health Canada Cosmetic Ingredient Hotlist for cosmetics.
US
EPA
EPA CPDat observed this chemical in 1954 composition records across product categories including Cons. electronics, mech. appliances, and machinery, Laboratory supplies, Specialty occupational products. EPA CPDat classifies this chemical for functional uses including Stabilizing agent, Antioxidant, Fragrance.
Effective: may 11, 2016View source →
US
FDA