red
Nitro-P-Phenylenediamine
Active dye in most permanent hair colours. Severe contact allergen.
Krasteva et al. Contact Dermatitis 2009
Low Tox Gear · Scanner
Schwarzkopf Live Colour Hair Dye Natural Brown Semi Permanent each
Is Schwarzkopf Live Colour Hair Dye Natural Brown Semi Permanent each low tox? Our scanner flagged 4 ingredients (1 in the avoid tier, 3 caution) on its published label, screened against our 237 source-cited chemical rules.
1 avoid3 caution
4 ingredients flagged
What we flagged
amber
Alcohol PEG
Manufacturing process can leave 1,4-dioxane (probable carcinogen) and ethylene oxide as contaminants. Look for 'vacuum-stripped' products.
amber
Phenoxyethanol
Preservative — generally well-tolerated but documented as MCAS and contact-dermatitis trigger in sensitive individuals.
amber
Methylparaben
Weakly oestrogenic preservatives. Endocrine concerns particularly relevant for hormonal conditions.
Full ingredients (from label)
INGREDIENTS:Aqua Cetearyl Alcohol Coconut Alcohol PEG-8 Ceteareth-12 Ceteareth-20 PEG-40 Castor Oil Phenoxyethanol Hydroxyethylcellulose HC Blue No. 12 HC Yellow No. 2 NN-Bis(2-Hydroxyethyl)- 2-Nitro-p-Phenylenediamine Methylparaben Panthenol Macadamia Ternifolia Seed Oil Propylparaben Sodium Hydroxide Parfum Linalool.
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.