Hydroxyisohexyl 3-Cyclohexene Carboxaldehyde
HICC, also known as: Lyral, HICC
- What it is
- A synthetic material with a lily-of-the-valley smell, originally one of the 26 allergens.
- Why it is used
- It was popular for its stable lily-of-the-valley effect.
- Where you usually find it
- Historically perfumes, cosmetics.
- Role in the fragrance
- Heart note (historically).
What EU law says
Regulation (EU) 2017/1410 moved it to Annex II (prohibited substances, entry 1380). Products containing it may not be placed on the market from 23 August 2019, nor made available from 23 August 2021.
In detail: fragrance allergens and the deadlines of Regulation 2023/1545