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

4-METHYLQUINOLINE

Safety grade: A

4-Methylquinoline is a synthetic aromatic compound that has a distinctive smell, often described as having floral and musky notes. It is used as a fragrance component in various cosmetic and personal care products.

This ingredient is used in cosmetic products to add or enhance fragrance, contributing to the overall scent profile of perfumes, lotions, and other beauty products.

Graded using: COSING.

Last verified: May 26, 2026