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 · 26 ingredients analyzed
Driven by Zinc Pyrithione — EU CLP Repr. 1B, EU CLP Eye Dam. 1, EU CLP Aquatic Acute 1/Aquatic Chronic 1
Ingredients with a documented concern, from official datasets and our reviewed database.
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.
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
A citrus oil that is both phototoxic in sunlight and increasingly allergenic as its limonene oxidizes.
fragrance · solvent
The citrus-peel scent molecule. Like linalool, it becomes allergenic mainly after oxidizing in opened products.
fragrance
The lemon-scent molecule in lemongrass and citrus oils, a recognized contact allergen requiring EU label declaration.
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.
humectant · solvent
A workhorse humectant and penetration enhancer that is fine for most, but a recurring culprit in eczema patients' patch tests.
anti-dandruff
The classic dandruff active banned in EU cosmetics in 2022 (reproductive-toxicity classification) but still standard in US shampoos.
surfactant
A mild coconut-derived surfactant in countless 'gentle' cleansers. Most allergy is caused by manufacturing impurities, so quality varies by brand.
ph adjuster · emulsifier
A pH adjuster that is safe in itself but should not be combined with formaldehyde releasers or bronopol, which can convert it to nitrosamines.
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, SODIUM CHLORIDE, COCAMIDOPROPYL BETAINE, LAURETH-2, PEG-40 HYDROGENATED CASTOR OIL, PARFUM (FRAGRANCE), ZINC PYRITHIONE, ACRYLATES COPOLYMER, GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, DMDM HYDANTOIN, QUATERNIUM-80, PROPYLENE GLYCOL, CITRUS LIMON (LEMON) PEEL OIL, LIMONENE, SODIUM POLYNAPHTHALENESULFONATE, PANTHENOL, CITRUS AURANTIFOLIA (LIME) SEED OIL, CITRAL, PANTOLACTONE, YELLOW 5 (CI 19140), GREEN 5 (CI 61570), LINALOOL, CITRIC ACID, TRIETHANOLAMINE, (F01)
