9-UNDECENAL is graded A (Safe) by Expert·ING, based on COSING regulatory data.

9-UNDECENAL

Safety grade: A

9-Undecenal is a fragrance compound that has a fresh, clean, slightly floral and waxy scent. It is used as a scent ingredient in cosmetic and personal care products.

This ingredient is used in cosmetic products purely to add or enhance fragrance, contributing a pleasant fresh and floral note to the product's scent profile.

Graded using: COSING.

Last verified: May 26, 2026