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Yes. Hydroxyisohexyl 3-cyclohexene carboxaldehyde is banned, restricted, or carries a mandatory warning label in 1 country including European Union. The US FDA still permits it, which is why it shows up in everyday American food and beauty products.
| Country / Region | Status |
|---|---|
| European Union | Banned or restricted |
A strong fragrance allergen; banned in EU cosmetics since 2021.
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See the full Hydroxyisohexyl 3-cyclohexene carboxaldehyde deep-dive page for regulatory citations, products that contain it, and verified clean swaps.