2-ISOPENTENAL is graded A** (Safe) by Expert·ING, based on COSING regulatory data.

2-ISOPENTENAL

Safety grade: A**

2-Isopentenal is a small organic compound with a fresh, green, slightly fruity scent. It is used as a fragrance ingredient to add pleasant aroma notes to cosmetic products.

This ingredient is used in cosmetic products solely to provide or enhance fragrance, contributing fresh and green scent notes to perfumes, lotions, and other beauty products.

Graded using: COSING.

Last verified: May 26, 2026