red
P-Phenylenediamine
Active dye in most permanent hair colours. Severe contact allergen.
Krasteva et al. Contact Dermatitis 2009
Low Tox Gear · Scanner
Just For Men Hair Colour Light Brown 100g
Is Just For Men Hair Colour Light Brown 100g low tox? Our scanner flagged 6 ingredients (1 in the avoid tier, 5 caution) on its published label, screened against our 237 source-cited chemical rules.
1 avoid5 caution
6 ingredients flagged
What we flagged
amber
Steareth-21
Manufacturing process can leave 1,4-dioxane (probable carcinogen) and ethylene oxide as contaminants. Look for 'vacuum-stripped' products.
amber
Resorcinol
Hair-dye coupler with thyroid-disrupting activity in animal studies.
amber
Sodium Sulfite
Documented MCAS, asthma and migraine trigger in sensitive individuals.
amber
P-Aminophenol
PPD-family hair-dye intermediate.
amber
Disodium EDTA
Chelating agent — generally tolerated but documented MCAS trigger in case reports.
Full ingredients (from label)
Light Brown:WaterEthanolamineCanola Oil Fatty AcidsCetearyl AlcoholSteareth-21Oleyl AlcoholResorcinolp-PhenylenediamineKeratinOlea Europaea (Olive) Fruit OilTocopheryl AcetateFragrancePetrolatumSodium SulfiteErythorbic Acidp-Aminophenolm-AminophenolCetearyl GlucosideDicetyl PhosphateNN-Bis(2-Hydroxyethyl)-p-Phenylenediamine SulfateCeteth-10 PhosphateCetyl AlcoholHydrolyzed KeratinEtidronic Acid24-Diaminophenoxyethanol HClCOLOUR DEVELOPER: AquaHydrogen peroxideCetearyl Alcohollaureth-23Ceteareth-20Acrylates/Stereat-20 Methylacrylate CrosspolymerSteareth-2Etidronic AcidDisodium EDTASodium Stannate
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.