Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde
Banned in cosmetics in the EU since 2021 due to high sensitisation rates. May still appear in older or non-EU products.
Low Tox Gear · Scanner

Is Colourless Hair Colour Remover Max Strength 180mL low tox? Our scanner flagged 8 ingredients (1 in the avoid tier, 7 caution) on its published label, screened against our 237 source-cited chemical rules.
Banned in cosmetics in the EU since 2021 due to high sensitisation rates. May still appear in older or non-EU products.
Emulsifier with documented gut microbiota disruption.
Preservative — generally well-tolerated but documented as MCAS and contact-dermatitis trigger in sensitive individuals.
Chelating agent — generally tolerated but documented MCAS trigger in case reports.
Same dye as Blue 1 used in cosmetics — appears in toothpaste, mouthwash, shampoo.
Ostensibly 'gentle' but ACDS Allergen of the Year 2004. Contains DMAPA/amidoamine impurities.
Plant-derived surfactant — rising contact-allergy rates in patch-test panels.
Manufacturing process can leave 1,4-dioxane (probable carcinogen) and ethylene oxide as contaminants. Look for 'vacuum-stripped' products.
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:
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.