Compound Monograph
Geraniol
A rose-scented monoterpene alcohol that is a major component of rose and citronella oils and a widely used fragrance ingredient.
Classification
Geraniol is a monoterpene alcohol (monoterpenoid), part of the terpenoids class. The largest class of plant compounds, built from five-carbon isoprene units — the essential-oil aromatics, resins, bitter principles, saponins, and plant sterols.
Where Does It Come From? (8)
Geraniol is a naturally occurring monoterpene alcohol (monoterpenoid), found in Rose, Lemongrass, Catnip and 5 other sources. It is well tolerated orally (low toxicity).
Research & Evidence
Geraniol is an acyclic monoterpene alcohol with a sweet, rose-like odour. It is a major constituent of rose oil, palmarosa and citronella oils, and occurs across many aromatic plants. It is widely used as a fragrance and flavouring agent and is also noted as a natural insect repellent. In laboratory work it shows antioxidant and antimicrobial activity typical of many monoterpenoids.
Toxicity & Safety
Geraniol is generally recognised as safe as a flavouring at the low levels used in foods. As with many fragrance terpenes, undiluted contact can cause skin irritation or sensitisation in susceptible individuals, so concentrated essential oils should be diluted for topical use.