Neroli Oil (Citrus aurantium flowers)

Neroli oil is a steam-distilled essential oil from the flowers of Citrus aurantium (bitter orange) and is not consumed as a food, so traditional macronutrient values (carbohydrates, protein, fat, fiber) are not applicable at typical usage doses (1–5 drops). Its therapeutic value lies entirely in its bioactive volatile and non-volatile compounds. Key constituents include: Monoterpene alcohols – Linalool (28–44%), α-terpineol (3–6%), geraniol (2–5%), and nerol (1–3%), which are primarily responsible for its anxiolytic, antimicrobial, and skin-regenerative properties. Monoterpene hydrocarbons – Limonene (9–18%), β-pinene (7–15%), and (E)-β-ocimene (3–8%), contributing antioxidant and mild anti-inflammatory effects. Esters – Linalyl acetate (5–12%), geranyl acetate (2–5%), and neryl acetate (1–4%), which enhance the calming and spasmolytic profile. Sesquiterpenes – (E)-nerolidol (2–6%) and (E,E)-farnesol (0.5–2%), noted for skin-penetration-enhancing effects and additional antimicrobial activity. Nitrogen-containing compounds – Methyl anthranilate (0.1–0.8%) and indole (trace), which are characteristic aroma markers of authentic neroli. Minor phenolic/antioxidant compounds – Trace amounts of flavonoid-derived compounds may co-extract, though concentrations are negligible. The oil contains no meaningful vitamins, minerals, dietary fiber, or protein. Bioavailability notes: Volatile terpenes and terpenols are readily absorbed transdermally (estimated 3–10% systemic absorption depending on carrier and application site) and via inhalation through the olfactory and pulmonary routes, reaching systemic circulation rapidly. Linalool and limonene have demonstrated measurable plasma concentrations within 5–20 minutes of dermal application or inhalation. Oral bioavailability of linalool is moderate (~60–70% in animal models) but oral ingestion of essential oils is generally not recommended without professional guidance. Typical therapeutic dose is 1–5 drops (approximately 0.025–0.125 mL) diluted in a carrier oil (2–5% concentration) for topical use, or 3–5 drops in a diffuser for aromatherapy.