Linalool

A fragrance ingredient that can be a potential skin irritant. Linalool's primary cosmetic function is as a fragrance component, providing a floral and woody scent profile through interaction with olfactory receptors. On skin, it exhibits mild antimicrobial activity, potentially by disrupting microbial cell membranes. It has also been reported to possess anti-inflammatory properties, possibly by modulating inflammatory pathways or interacting with transient receptor potential (TRP) channels, although these effects are generally secondary to its role as a scent agent in cosmetic formulations.

The CIR Expert Panel considers Linalool safe as a cosmetic ingredient in the present practices of use and concentration. However, Linalool is a common contact allergen, particularly when oxidized by air, and is one of the 26 fragrance allergens mandated for individual labeling in the EU due to its sensitization potential in susceptible individuals.

Look for products with Typically ranges from 0.001% to 1% in most cosmetic formulations, with concentrations potentially higher in dedicated fragrance products like perfumes. EU regulations require individual labeling of Linalool when its concentration exceeds 0.001% in leave-on products and 0.01% in rinse-off products. for clinical efficacy.