Quick answer
A terpene alcohol found in certain plants, like lavender; Functions as a perfuming agent; Can cause skin sensitization; Appears as a colorless liquid as a raw material
Linalool
Updated
3,7-Dimethyl octa-1,6-diene-3-ol
Purpose
A plant-derived fragrant compound that can cause skin sensitization, especially when exposed to air.
Rating
WORST
Category
Fragrance: Synthetic and Natural, Irritant, Plant Extracts
INCI Purpose
DEODORANT, PERFUMING
Risks
Alternative Names
Hair Profile
Role
Phototoxic; degrades color and causes cuticle damage under UV light. Found in "natural" leave-in sprays used outdoors.
At a Glance
A terpene alcohol found in certain plants, like lavender
Functions as a perfuming agent
Can cause skin sensitization
Appears as a colorless liquid as a raw material
Article
Linalool is a terpene alcohol and fragrant compound common in plant-derived oils such as those from lavender and coriander. In cosmetics and skin care its primary function is perfuming, due to its floral scent.
Although linalool in itself is a weak skin sensitizer, the real issue comes when linalool’s exposed to air and oxidizes, creating allylic hydroperoxides. These hydroperoxides are potent skin sensitizers, which is why it’s best for skin’s health and appearance to avoid leave-on products that contain linalool.
Beyond cosmetics, linalool is also often used in the homecare industry (such as air fresheners).
As a raw material, linalool is a colorless oil.
See: Limonene
References