red
P-Phenylenediamine
Active dye in most permanent hair colours. Severe contact allergen.
Krasteva et al. Contact Dermatitis 2009
Low Tox Gear · Scanner
L'Oreal Paris Excellence Creme Hair Colour 6.1 Light Ash Brown each
Is L'Oreal Paris Excellence Creme Hair Colour 6.1 Light Ash Brown each low tox? Our scanner flagged 15 ingredients (1 in the avoid tier, 14 caution) on its published label, screened against our 237 source-cited chemical rules.
1 avoid14 caution
15 ingredients flagged
What we flagged
amber
Sodium Sulfite
Documented MCAS, asthma and migraine trigger in sensitive individuals.
amber
Ceteareth-
Manufacturing process can leave 1,4-dioxane (probable carcinogen) and ethylene oxide as contaminants. Look for 'vacuum-stripped' products.
amber
M-Aminophenol
PPD-family hair-dye intermediate.
amber
Propylene Glycol
Common humectant. Documented contact allergen — especially for eczema-prone skin.
amber
Sodium Lauryl Sulfate
Strong surfactant that strips skin lipids. Worsens eczema, rosacea and psoriasis barrier issues.
amber
Isopropyl Myristate
High comedogenicity rating.
amber
Cetrimonium
Documented respiratory and skin sensitiser. Common MCAS and asthma trigger.
Svanes et al. Bergen Respiratory Health Study, Am J Respir Crit Care Med 2018
Full ingredients (from label)
COLOURING CREAM: AQUA / WATER CETEARYL ALCOHOL AMMONIUM HYDROXIDE CETEARETH-25 COCAMIDE MEA STEARIC ACID PALMITIC ACID PROPYLENE GLYCOL m-AMINOPHENOL 2-AMINO-3-HYDROXYPYRIDINE ASCORBIC ACID SODIUM SULFITE HYDROXYETHYL-34-METHYLENEDIOXYANILINE HCL SODIUM HYDROXIDE SODIUM LAURYL SULFATE HYDROXYBENZOMORPHOLINE POLYQUATERNIUM-6 NN-BIS(2-HYDROXYETHYL)-p-PHENYLENEDIAMINE SULFATE ISOPROPYL MYRISTATE p-PHENYLENEDIAMINE MYRISTIC ACID CETRIMONIUM CHLORIDE TETRASODIUM EDTA 24-DIAMINOPHENOXYETHANOL HCL PARFUM / FRAGRANCE.DEVELOPER: AQUA / WATER HYDROGEN PEROXIDE CETEARYL ALCOHOL SODIUM LAURYL SULFATE SODIUM BENZOATE ETIDRONIC ACID CITRIC ACID TETRASODIUM EDTA.GENTLE PH SHAMPOO: AQUA / WATER SODIUM LAURETH SULFATE GLYCOL DISTEARATE SODIUM CHLORIDE COCAMIDOPROPYL BETAINE DIMETHICONE GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE COCAMIDE MEA COCO-BETAINE SODIUM BENZOATE SODIUM HYDROXIDE SODIUM HYALURONATE STEARETH-6 PHENOXYETHANOL ACETIC ACID PEG-100 STEARATE TRIDECETH-10 TRIDECETH-3 SALICYLIC ACID FUMARIC ACID LINALOOL BENZYL ALCOHOL AMODIMETHICONE ISOEUGENOL CARBOMER CITRIC ACID HEXYLENE GLYCOL HEXYL CINNAMAL PARFUM / FRAGRANCE.NOURISHING MASK: AQUA / WATER CETEARYL ALCOHOL DIMETHICONE GLYCERIN BEHENTRIMONIUM CHLORIDE LACTIC ACID SODIUM LAURETH SULFATE SODIUM HYALURONATE SODIUM HYDROXIDE PHENOXYETHANOL LINALOOL BENZYL ALCOHOL AMODIMETHICONE ISOPROPYL ALCOHOL ISOEUGENOL CETRIMONIUM CHLORIDE HEXYL CINNAMAL PARFUM / FRAGRANCE.Please be aware that ingredient lists for the products of our brand are updated regularly. Please refer to the ingredient list on your product package for the most up to date list of ingredients to ensure it is suitable to your personal use.
How this analysis is generated
Each ingredient on this product's published label is matched against our 237 source-cited chemical rules, each documenting a concern from peer-reviewed research and regulatory sources. Severity tiers:
- Avoid (red) — banned or restricted in the EU, UK or Canada but still legal in the US, IARC-listed, or strong contact-allergen evidence.
- Caution (amber) — regulatory caution, contamination risk, or condition-specific irritant.
- Mild (green) — low concern but commonly avoided in low-tox formulations.
Each flag links to its primary chemical-level source, and each condition pill links to a PubMed-indexed paper that discusses the chemical class in the context of that condition. Every citation is a real peer-reviewed paper — we don't link to Wikipedia or PubMed search pages. Some pairs use a topically-broad paper (e.g. a fragrance-allergen patch-test review) rather than a single-pair study where the literature is thin. The full evidence chain (chemical → mechanism → condition → paper) is one click away.
This is automated analysis of a published label, not medical advice — always verify the label yourself before changing products. Methodology and source list at scan.lowtoxgear.com.