Cosmetic ingredient

HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE

HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE is a synthetic fragrance ingredient, also referred to as HICC and Lyral. It is a cyclic aldehyde used to build a formula's scent; it is not a plant extract, butter, or essential oil.

INCIHY1 products
CAS number
31906-04-4 / 51414-25-6
EC number
250-863-4 / 257-187-9
Chemical name
3-Cyclohexene-1-Carboxaldehyde, 4-(4-Hydroxy-4-Methylpentyl)-; 3-(4-Hydroxy-4-methylpentyl)cyclohex-3-enecarbaldehyde

HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE: what it is

HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE is a synthetic fragrance ingredient, also referred to as HICC and Lyral. It is a cyclic aldehyde used to build a formula's scent; it is not a plant extract, butter, or essential oil.

The INCI name covers two closely related forms of the molecule, distinguished by the position of part of their structure. That chemical distinction explains why similar names may appear in technical documents, while the long label name identifies the same group of aromatic materials.

HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE: what it does in cosmetics

In cosmetics, HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE is used for perfuming. In practical terms, it contributes to the scent noticed when a product is applied and can help mask the odour of base materials; it is not a moisturiser, emollient, or skin treatment.

A European study using patch tests in people with dermatitis investigated sensitisation to HICC, not a cosmetic benefit from the ingredient. In the European Union, cosmetics containing it have not been allowed to be made available on the market since 23 August 2021. Its name on an ingredient list should therefore not be read as a sign of skin care or repair.

HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE: conditions and care

In the European Union, cosmetics containing HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE have not been allowed to be made available on the market since 23 August 2021.

Use limits

Restrictions and conditions of use

Cosmetic restriction
II/1380 From 23 August 2019 cosmetic products containing that substance shall not be placed on the Union market. From 23 August 2021 cosmetic products containing that substance shall not be made available on the Union market.’;
Catalogue presence

Products containing this ingredient

See which products include it and the name used in each composition.