amber
Hydroxypropyltrimonium
Documented respiratory and skin sensitiser. Common MCAS and asthma trigger.
Svanes et al. Bergen Respiratory Health Study, Am J Respir Crit Care Med 2018
Low Tox Gear · Scanner
Natural Box
Is Schwarzkopf and Henkel Natural Box low tox? Our scanner flagged 3 ingredients (3 in the caution tier) on its published label, screened against our 237 source-cited chemical rules.
3 caution
3 ingredients flagged
What we flagged
amber
Sodium Benzoate
Implicated in childhood hyperactivity studies and reported MCAS trigger.
amber
Cocamidopropyl Betaine
Ostensibly 'gentle' but ACDS Allergen of the Year 2004. Contains DMAPA/amidoamine impurities.
Full ingredients (from label)
Aqua (Water, Bau) Sulfate Cocamidopropyl Betaine Coco-Glucoside Font mousser at nettolent Olycerin - Contribue à équilibrer le niveau d'hydratation Guar Hydroxypropyltrimonium Chloride Cannabis Sativa Seed Oil-Participent blapport de soin Propanediol Caprylate Aide à lutter contre les pellicules Betaine Participe à l'apport de douceur Citric Acid - Optimise le pH de la formule Sodium Chloride Améliore l'apparence du produit Caprylyl/Capryl Glucoside Fait mousser et nettoie Sodium Benzoate Participe à la bonne conservation du produit Parfum (Fragrance) - Sublime l'odeur du produit Sodium Sulfate - Améliore l'apparence du produit Cocos Nucifera (Coconut) Oil-Participe à l'apport de soin Limonene Linalool - Composants du parfum have bouchon et étiquette Aide à dissoudre les ingrédients Sodium Cos . . . -
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.