Pétrole Hahn · Hair Care
Every ingredient on the label, checked against published safety data. Profile tags on each card show who should take extra care. Label data from Open Beauty Facts, a community database — formulations change, so verify against your packaging.
High concern
Contains one or more ingredients with significant published concerns. Read the details before use.
Concern score 99/100 · 37 ingredients analyzed
Driven by Butylphenyl Methylpropional — EU CLP Repr. 1B, EU CosIng Annex II (prohibited in cosmetics)
Ingredients with a documented concern, from official datasets and our reviewed database.
fragrance
The lily-of-the-valley scent 'Lilial', banned in EU cosmetics in 2022 after being classified as presumed toxic to human reproduction. Still legal in some other markets — check older or imported products.
preservative
A formaldehyde-releasing preservative used in creams, shampoos and wipes. The slow formaldehyde release preserves the product but exposes skin to a known carcinogen and allergen.
fragrance
An umbrella term that can hide dozens of undisclosed scent chemicals. Fragrance is the leading cause of allergic contact dermatitis from cosmetics, and dermatologists routinely advise fragrance-free products for eczema, babies and sensitive skin.
The fragrance 'Lyral', banned in the EU since 2021 after becoming one of the most frequent causes of fragrance allergy in Europe.
surfactant · foaming agent
The gentler cousin of SLS used in most mainstream shampoos and washes. Its manufacturing can leave trace 1,4-dioxane, which reputable makers strip out — an issue of quality control rather than the ingredient itself.
fragrance · solvent
The citrus-peel scent molecule. Like linalool, it becomes allergenic mainly after oxidizing in opened products.
fragrance
A floral scent molecule found in lavender and many essential oils. It oxidizes on air exposure into strongly sensitizing compounds, which is why it must be declared on EU labels.
fragrance
A rose/geranium scent molecule and one of the more frequently positive fragrance allergens in patch testing.
fragrance
The lemon-scent molecule in lemongrass and citrus oils, a recognized contact allergen requiring EU label declaration.
fragrance
The clove scent molecule, a long-established contact allergen on the EU declaration list.
surfactant
A mild coconut-derived surfactant in countless 'gentle' cleansers. Most allergy is caused by manufacturing impurities, so quality varies by brand.
fragrance · uv absorber
A floral fixative on the EU allergen list, with early-stage evidence of weak hormonal activity being evaluated by regulators.
fragrance
A sweet hay-scented molecule requiring EU allergen declaration; a regular positive in fragrance patch-test series.
fragrance · solvent
A fragrance solvent and fixative that must be declared on EU labels as a potential allergen.
fragrance
A rose-type scent component on the EU's mandatory-declaration allergen list.
film former · thickener
A common film-forming polymer scrutinized under the EU's microplastics restriction; skin safety itself is well established.
colorant
Tartrazine yellow dye; approved for cosmetics with rare sensitivity reactions reported.
Ingredients rated likely to clog pores — relevant if your skin is acne-prone. This is a separate indicator and is not part of the safety score.
Indicative Fulton-scale ratings from published dermatology references — not a regulator classification; individual reactions vary.
Ingredients that are unflagged in our reviewed database, reviewed safe by the CIR panel, or on an EU permitted list.
Catalogued in official cosmetic-ingredient inventories (EU CosIng and others) with no safety flag on record. Being recognized isn't a safety guarantee — it means the ingredient is on record but no authority has published a concern.
Not found in any dataset we hold (often trade-name blends or very niche ingredients), so we can't assess them — this is not a safety judgment either way.
This report is informational, not medical advice. Assessments summarize published findings (EU CosIng, IARC, ECHA, CIR, SCCS and others) about ingredients — not clinical testing of this specific product. Exposure, concentration and individual sensitivity all matter. Consult a dermatologist for medical concerns.
Same category, better ingredient safety score than this product — somewhere to look next if this one raised concerns.
AQUA/WATER/EAU, SODIUM LAURETH SULFATE, COCAMIDOPROPYL BETAINE, SODIUM CHLORIDE, CETYL PALMITATE, PEG-40 HYDROGENATED CASTOR OIL, ACRYLATES COPOLYMER, PARFUM (FRAGRANCE), GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, GLYCERIN, BEHENETH-10, DMDM HYDANTOIN, HYDROGENATED CASTOR OIL, GLYCERYL STEARATE, LIMONENE, LINALOOL, PANTHENOL, BENZYL SALICYLATE, SORBITOL, THYMUS VULGARIS (THYME) FLOWER/LEAF OIL, BUTYLPHENYL METHYLPROPIONAL, HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE, COUMARIN, GERANIOL, CITRAL, PTEROCARPUS MARSUPIUM BARK EXTRACT, BENZYL BENZOATE, EUGENOL, CITRONELLOL, DISODIUM SUCCINATE, YELLOW 5 (CI 19140), GREEN 5 (CI 61570), GLUTAMIC ACID, CITRIC ACID, SODIUM HYDROXIDE, LAURETH-2, (F06)
