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GREENS, HERBS AND FOUGERES / woody · earthy · bitter
Neem
Category
GREENS, HERBS AND FOUGERES
Subcategory
woody · earthy · bitter
Origin
Volatility
Heart Note
Botanical
Azadirachta indica
Appearance
pale brown liquid
Odor Strength
Medium
Producing Countries
India, Myanmar, Sub-Saharan Africa
Pyramid
Heart
Pungent, bitter, and sulfurous. Neem oil smells like garlic crossed with burnt peanuts. It is not used in fragrance; TGSC lists it as not for fragrance use. Its uses are pesticide, soap, and cosmetics.
Intensely pungent, sulfurous, and bitter. In concentration: garlic, burnt peanuts, and a sharp, almost toxic green bitterness. At extreme dilution (0.01% or less), the sulfurous edge recedes and a curious fatty-animalic quality emerges — not unlike certain civet or castoreum qualities.
Not comparable to any pleasant perfumery material at full strength. The closest reference might be heavily diluted sulfurol or certain allyl sulfide compounds.
Evolution over time
Immediately
Immediately
Intensely sulfurous, garlicky, bitter green pungency
After a few hours
After a few hours
Fatty-animalic undertone emerges as sulfur compounds dissipate
After a few days
After a few days
Faint, fatty residue — less offensive but still challenging
Terroir & Transformation
Indicative 2025 wholesale prices.
The Full Story
Neem (Azadirachta indica) is a fast-growing tropical tree native to the Indian subcontinent. The oil pressed from its seeds is a pungent natural material, intensely bitter, sulfurous, and garlicky, with an underlying fatty-nutty character.
The scent of neem oil is garlic-like and pungent; the attribution to sulfur compounds lacks a clear citation here, and the limonoids present, including azadirachtin, are non-volatile and do not drive the odor. The combination is deeply unpleasant to most Western noses in concentration, but at extreme dilution, neem can contribute a curious animalic depth, a sense of biological rawness that no synthetic can easily replicate.
In traditional Indian and Southeast Asian medicine and pest control, neem has been used for millennia, not in perfumery. The tree is sometimes called the 'village pharmacy' for its range of bioactive properties. In Western perfumery, neem is essentially absent from commercial formulations but appears occasionally in avant-garde or concept-driven work.
A single mature neem tree can produce 30-50 kg of fruit per year. Its leaves, bark, and seeds are reported to contain over 140 identified bioactive compounds, studied for pharmaceutical potential.
Extraction & Chemistry
Extraction method: Cold pressing of neem seeds (Azadirachta indica). The seeds contain 40-50% oil by weight. Industrial extraction uses hexane solvent for higher yields. The oil is thick, dark, and strongly odorous. Steam distillation of neem leaves produces a lighter, less offensive oil that is occasionally used in aromatherapy.
Not used in fragrance, per TGSC; no IFRA Standard applies.
Synonyms
INDIAN LILAC · NIMTREE
Physical Properties
Odor Strength
Medium
Appearance
pale brown liquid
Flash Point
> 200 °F TCC (> 93 °C)
Specific Gravity
0.908 to 0.934 @ 25 °C
Refractive Index
1.462 to 1.473 @ 25 °C
In Perfumery
Neem has essentially no role in mainstream perfumery due to its overwhelming bitterness and sulfurous intensity. In trace amounts, it can function as an animalic modifier in experimental or avant-garde compositions. Its bioactive properties (insecticidal, antifungal) are far more commercially relevant than its scent. In functional fragrance (insect repellents, agricultural products), neem oil is used at higher concentrations where its scent is tolerated for utility.
