5-HEXEN-2-ONE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

5-HEXEN-2-ONE

Safety grade: A

5-Hexen-2-one is a synthetic fragrance chemical that has a fresh, slightly fruity or herbal scent. It is used in very small amounts as part of a fragrance blend in cosmetic and personal care products.

This ingredient is used in cosmetic products to add or enhance a pleasant scent, contributing to the overall fragrance profile of the formulation.

Graded using: COSING.

Last verified: May 26, 2026