4-TERT-BUTYLDIHYDROCINNAMALDEHYDE is graded C** (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-ALLERGEN-.
4-TERT-BUTYLDIHYDROCINNAMALDEHYDE
Safety grade: C**
This is a synthetic fragrance ingredient that has a floral, slightly spicy scent reminiscent of lily of the valley or hyacinth. It is commonly used to add pleasant aromas to cosmetic and personal care products.
It is used in cosmetic products purely as a fragrance ingredient to provide or enhance a pleasing scent in the final product.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Other EU Fragrance Allergen ingredients
- LIMONENE — Grade C
- LINALOOL — Grade C**
- BENZYL ALCOHOL — Grade C**
- CITRONELLOL — Grade C
- HEXYL CINNAMAL — Grade C
- GERANIOL — Grade C