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Basil

Q: Is Basil natural or synthetic?

. Extraction: Steam distillation of fresh flowering herb (leaves, stems, and inflorescences). Oil yield: 0.04–0.70% (v/fresh weight), with commercial operations typically achieving 0.4–0.6% over a 2.5–3 hour distillation cycle. One hectare produces 10,000–15,000 kg of fresh herbage, yielding approximately 10–23 litres of essential oil. The linalool chemotype (European/American) and the estragole chemotype (Comoros/Reunion type, CAS 84775-71-3) are commercially distinct products. A CO2 extract also exists, closer in character to the fresh herb but rarely used in fine fragrance. Major producers: India (54% of global exports), Vietnam (18%), France (9%), Egypt, Comoros..

GREENS, HERBS AND FOUGERES / aromatic · green · herbal

Basil

Category	GREENS, HERBS AND FOUGERES
Subcategory	aromatic · green · herbal
Origin
Volatility	Top Note
Botanical	Ocimum basilicum L.
Appearance	Pale yellow to yellow clear liquid
Odor Strength	Medium
Producing Countries	India, Vietnam, France, Egypt, Comoros, Madagascar, Seychelles
Pyramid	Top

Crushed leaf on a warm palm — green, peppery, faintly clove-like, with a sweet anise thread that vanishes in seconds. Not a kitchen herb in this context: in perfumery, basil reads as an abstract green-aromatic brightness, closer to a thinned-out lavender than to pesto.

Scent
Terroir & Origins
The Full Story
Fun Fact
Extraction & Chemistry
In Perfumery

Scent

Linalool chemotype: green-spicy opening, sharper and more peppery than lavender, less phenolic than thyme, with a faint anise sweetness that neither rosemary nor sage possess. A mentholated brightness gives way within minutes to a warm, slightly clove-like middle — softer and rounder than the opening suggests. On blotter, it fades to a faint woody-balsamic whisper within two to three hours. The exotic chemotype is a different material entirely: overwhelmingly anisic, like liquefied tarragon, with almost no green-herbal character. Compared to clary sage, sweet basil is drier, thinner, more angular. Compared to petitgrain bigarade, it is greener and less citric.

Evolution over time

Immediately

Bright green-spicy burst, peppery, faintly mentholated. A sweet anise thread appears and disappears within seconds. Unmistakably herbal but not heavy.

After a few hours

The green sharpness softens to a warm, slightly clove-like aromatic warmth. Linalool's woody-floral backbone emerges. Less identifiable as basil now — more abstract herbal freshness.

After a few days

A faint woody-balsamic trace, almost transparent. The green character is gone entirely. What remains is closer to a diluted lavender residue than to any herb.

Terroir & Transformation

Indicative 2025 wholesale prices.

The Full Story

Two chemotypes, two different materials. Sweet basil (Ocimum basilicum, linalool chemotype) — grown in France, Egypt, India, and the United States — contains 45–72% linalool (GC-MS data, PMC 6152153), with secondary contributions from 1,8-cineole (0.4–10.7%), eugenol (2–15%), and methyl chavicol at modest levels (trace to 30%). The result is a cool, woody-floral oil with a green-spicy top and a faintly balsamic dry-down. The exotic or Réunion type, cultivated in the Comoro Islands, Madagascar, and the Seychelles, inverts this chemistry entirely: estragole (methyl chavicol) can reach 85%, producing a sharp, intensely anisic oil with negligible linalool. These two oils share a botanical name but almost nothing olfactorily.

A third chemotype — eugenol-dominant — is found in North Africa, Russia, and parts of Eastern Europe. It smells closer to clove than to basil. A fourth, rich in methyl cinnamate, is cultivated in tropical Asia. For fine fragrance, the linalool chemotype is the standard grade.

Regulatory Constraints

The IFRA 51st Amendment (2023) dramatically tightened restrictions on estragole — classified as a genotoxic carcinogen by EFSA — limiting it to 0.014% in Category 4 finished products (fine fragrance). This effectively excludes the exotic/Comoros chemotype from all but trace-level use in prestige perfumery. The linalool chemotype faces only standard EU allergen declaration requirements for linalool (above 0.001% in leave-on products under EU 2023/1545).

Yield and Production

Steam distillation of fresh flowering herb yields 0.04–0.70% oil (v/fresh weight), with commercial operations averaging 0.4–0.6% over a 2.5–3 hour cycle. India accounts for 54% of global basil oil exports, followed by Vietnam (18%) and France (9%). One hectare produces 10,000–15,000 kg of fresh herbage annually — roughly 10–23 litres of essential oil.

This note in Première Peau. Gravitas Capitale · Nuit Elastique · Simili Mirage. Sample all seven extraits in the Discovery Set.

Related notes: Fig · Immortelle · Lavender · Rosemary · Sage · Sclareol · Tea · Thyme

Did You Know?

Did you know?

The ancient Greeks believed basil would only flourish where poverty and hatred reigned, and that seeds had to be sown while shouting curses — a ritual called 'sparassein to basilikon.' The French expression 'semer le basilic' (to sow basil) still carries the figurative meaning of ranting or raving.

Extraction & Chemistry

Extraction method: Steam distillation of fresh flowering herb (leaves, stems, and inflorescences). Oil yield: 0.04–0.70% (v/fresh weight), with commercial operations typically achieving 0.4–0.6% over a 2.5–3 hour distillation cycle. One hectare produces 10,000–15,000 kg of fresh herbage, yielding approximately 10–23 litres of essential oil. The linalool chemotype (European/American) and the estragole chemotype (Comoros/Reunion type, CAS 84775-71-3) are commercially distinct products. A CO2 extract also exists, closer in character to the fresh herb but rarely used in fine fragrance. Major producers: India (54% of global exports), Vietnam (18%), France (9%), Egypt, Comoros.

↑ See Terroir & Origins for origin-specific methods.

Molecular Formula	C₁₀H₁₈O (Linalool, dominant in ct. linalool) · C₁₀H₁₂O (Estragole/Methyl chavicol)
CAS Number	8015-73-4 (basil oil) · 78-70-6 (linalool)
Botanical Name	Ocimum basilicum L.
IFRA Status	The oil itself is not individually restricted by IFRA, but its key constituents are regulated. Estragole (methyl chavicol): restricted under IFRA 51st Amendment (Standard 099, 2023) to 0.014% max in Category 4 finished products (fine fragrance). Linalool: EU allergen requiring declaration above 0.001% in leave-on products. The linalool chemotype is far less constrained than the estragole-dominant exotic type.
Synonyms	BASILIC · SWEET BASIL · BASIL GRAND VERT · BASILICUM
Physical Properties
Odor Strength	Medium
Lasting Power	2-4 hours
Appearance	Pale yellow to yellow clear liquid
Boiling Point	213.00 to 215.00 °C. @ 760.00 mm Hg
Flash Point	167.00 °F. TCC ( 75.00 °C. )
Specific Gravity	0.89000 to 0.93000 @ 25.00 °C.
Refractive Index	1.47950 to 1.48950 @ 20.00 °C.

In Perfumery

Top-to-heart modifier in aromatic, fougère, and green compositions. Sweet basil oil (linalool chemotype, 45–72% linalool) provides a green-spicy lift that connects naturally to lavender, bergamot, and neroli — all linalool-bearing materials, which is why they blend so easily. At sub-threshold doses (below 0.5% of concentrate), basil ceases to be identifiable as basil and instead contributes an abstract herbal freshness — angular, slightly mentholated, with none of the round sweetness of clary sage. The exotic chemotype (Comoros, Madagascar — up to 85% estragole) delivers a sharply different effect: intensely anisic, closer to tarragon than to any herb garden. Its use in fine fragrance is now severely constrained by the IFRA 51st Amendment (2023), which restricts estragole to 0.014% in Category 4 finished products (fine fragrance) due to genotoxicity concerns identified by EFSA. This effectively limits the exotic type to trace-level dosing or functional perfumery. The linalool chemotype, by contrast, faces only the standard linalool allergen declaration requirements under EU 2023/1545. It remains a practical material: more photostable than most citrus oils (low limonene), more tenacious than expressed lemon, and capable of bridging citrus top notes into aromatic hearts without weight.