Vetiver

Vetiver (Chrysopogon zizanioides): A Comprehensive Reference

1. Identity and Botanical Classification

Chrysopogon zizanioides (Linn.) Nash, commonly known as vetiver, is a densely tufted, perennial grass belonging to the Poaceae family, native to India and widely distributed across tropical and subtropical regions of South and Southeast Asia, including Malaysia, Sri Lanka, the Philippines, Pakistan, and Thailand.

The plant species Vetiveria zizanioides (L.) Nash is a synonym for Chrysopogon zizanioides (L.) Roberty and represents a distinct specimen widely utilized in many diverse industrial sectors. Additional synonyms appearing in the scientific literature include Anatherum zizanioides (L.) Hitchc. & Chase, Andropogon muricatus Retz., and Andropogon squarrosus auct. The common name "vetiver" derives from the ancient South Indian Tamil language, where it means "dug-up root." In India it is most widely known as Khus or Khas-Khas, and in Sanskrit it bears the name Ushira (also rendered Usira).

The plant grows in dense clumps with long, narrow, and rigid leaves, typically reaching a height of 1.5–2 m, and its extensive root system, penetrating up to 3–4 m, provides exceptional drought resistance, erosion control, and soil stabilization.

1.1 Primary Medicinal Part

The roots and essential oils of this aromatic grass have been widely utilized for their anti-inflammatory, analgesic, anticancer, antioxidant, antimicrobial, and wound-healing properties. Vetiver essential oil (VEO) is produced by steam distillation of the aromatic roots of the tropical grass, which is native to the Indian subcontinent.

1.2 Common Forms and Preparations

• Essential oil (root distillate): The commercially dominant form, obtained by steam or hydro-distillation of dried roots. The annual market demand of vetiver oil was estimated at up to 250 tons, worth approximately $200 million per year, while the worldwide herbal cultivating area has reached nearly 10,000 hectares.
• Aqueous root decoction / infusion: Roots are boiled or steeped in water and consumed orally. This preparation has been recorded across multiple traditional medical systems.
• Root paste: Powdered or freshly ground roots made into a paste for external topical application.
• Woven root articles: In India, vetiver root was woven into floor mats and window screens called "khas-khas tatties" that were sprinkled with water — as the breeze passed through, it was cooled and scented with vetiver, providing both physical cooling and psychological calming effects.
• Flavoured beverage (Khus Sharbat): Vetiver oil is used for flavouring Khus Sharbat and in making cosmetics, perfumes, soaps, etc.
• Acetylated vetiver oil (AVO): A chemically modified derivative used predominantly in the fragrance and cosmetics industry and assessed separately for safety by regulatory bodies.

1.3 Geographic Production

Two species of Vetiveria are found in India, of which V. zizanioides is the common source of the well-known oil of vetiver used in medicine and in perfumery. Khas grass grows wild in many states including Haryana, Uttar Pradesh, Rajasthan, Gujarat, Bihar, Orissa, and Madhya Pradesh and throughout South India, and is systematically cultivated in the North Indian states of Rajasthan, Uttar Pradesh, and Punjab and in the South Indian states of Kerala, Tamil Nadu, Karnataka, and Andhra Pradesh. Additional major producing countries include Haiti and Indonesia.

2. Traditional and Historical Use

2.1 Ayurveda (India)

Vetiver has been an integral component of traditional medicinal systems across India and Asia for centuries. In Ayurveda, it is the best-known herb for pacifying pitta dosha; it is mentioned in the Vedas and known as Gandhatrna, and it also appears in the Charak Samhita and Sushruta Samhita.

An associate professor in Ayurveda at Bharati Vidyapeeth University describes a recipe from 100 B.C.E. to treat fever: six herbs, including khus, are mixed with a large quantity of water and boiled until the solution has been reduced to half its original volume; drinking this aids in bringing down the burning sensation of the skin and internal organs.

Ushira is known for haematinic, expectorant, digestive, anthelmintic, antimicrobial, antibacterial, antifungal, diuretic, carminative, stomachic, antispasmodic, antiasthmatic, anti-oxidant, anti-arthritic activity and antigout properties. Its roots are used for cooling action, to cool down the brain, and in treatment of ulcers; it is also used to cure problems like anemia, amenorrhea, and dysmenorrhea.

2.2 Unani and Siddha Medicine

In Unani medicine, vetiver is known as "Khus" and is included in treatments for clearing excess phlegm and improving lung health; in Siddha practices, vetiver-infused water and oils are prescribed for reducing throat inflammation and easing breathing difficulties.

2.3 Sri Lankan and Southeast Asian Traditions

In Sri Lanka, vetiver is called "the oil of tranquility" and used to treat anxiety and nervous exhaustion. Scientific studies have evaluated its insect-repellent, anti-inflammatory, antioxidant, and metabolic activities in several traditional settings.

2.4 Perfumery and Cultural Use

Vetiver has been known to India since ancient times. It has been considered a high-class perfume, and copper-plate inscriptions list the perfume as one of the articles used by royalty. A 2021 study on vetiver oil's complex chemical composition noted it has a "quasi‐pheromone‐like effect" on perfumers and consumers alike, and that it appears in more than a third of all fragrances. The use of vetiver dates back thousands of years, with mentions in ancient Indian scriptures including the Vedas. Traditionally, its aromatic roots have been employed for cooling mats, perfumes, and herbal remedies; in ancient India, vetiver was regarded as sacred and often incorporated into spiritual rituals and ceremonies.

3. Key Constituents and Active Compounds

Vetiver oil consists of a complex mixture of more than 300 compounds, with the major ones being vetiverol, vetivene, alpha- and beta-vetivone, khusimol, elemol, vetiselinenol, beta-eudesmol, terpenes, zizanoic acid, vanillin, hydrocarbons, sesquiterpenes, alcohols, and ketones.

The oil mainly comprises sesquiterpenes and sesquiterpene derivatives, of which vetiverols, their carbonyl compounds and esters are the main constituents. It is also a complex mixture of various sesquiterpenes, hydrocarbons, flavonoids, saponins, phenols, and tannins, and is used in various medical and cosmetic industries.

3.1 Major Sesquiterpene Alcohols and Ketones

The content of the chemical constituents of the essential oils varies, with a predominance of khusimol, which ranged from 18.97 to 25.02% in Brazilian accessions. Multiple independent GC-MS analyses from different geographic sources have reported khusimol as consistently the dominant compound. In one analysis, the main components were khusimol (12.7%), longipinene (4.2%), valerenol (3.9%), and epizizanal (3.3%), with α-vetivone and β-vetivone following closely behind (2.0% and 1.6%, respectively).

In another study, the primary ingredients in vetiver EO were khusimol (30.0% ± 0.3%), eudesmol (10.8% ± 0.3%), muurolene (6.0% ± 0.1%), and patchouli alcohol (5.6% ± 0.2%).

The complexity of the oils' chemical makeup and the variety of their constituents and chemical structures are responsible for the wide range of biological activities. As biological activity can strongly vary depending on a species' chemical makeup, future research should concentrate on plant culture and EO standardisation; various chemical compounds of vetiver are still unidentified and need to have their properties and uses in various pharmacological activities determined.

3.2 Notable Individual Compounds

• Khusimol — The predominant sesquiterpene alcohol. Its chemical composition, along with vetiverol and vetiverone, contributes to both aroma and therapeutic properties. Animal studies suggest anxiolytic effects.
• α-Vetivone and β-Vetivone — Sesquiterpene ketones reported to contribute to sedative and skin-regenerative properties. The constituents α- and β-vetivone, khusimone, zizanal, and epizizanal were found to be repellent to insects.
• Nootkatone — A minor but pharmacologically significant sesquiterpene ketone. Nootkatone has insect-repellent (particularly against ticks and mosquitoes), anti-inflammatory, and cognitive-enhancing properties, and is now being researched for its neurological applications.
• Vetiselinenol and vetiverol — Sesquiterpene alcohols contributing to the characteristic earthy-woody odour profile and reported antimicrobial and antioxidant activities.
• β-Vetispirene — Key bioactive compounds such as β-vetispirene exhibit targeted efficacy, most notably against AKR1C1 in lung cancer, while ethanol and hexane extracts exhibit potent antibacterial and antimycobacterial activities.
• Zizanoic acid (zizanal) — A sesquiterpene acid contributing to the oil's insecticidal and antimicrobial character.

4. Mechanisms of Action

4.1 Central Nervous System: GABAergic and Cholinergic Pathways

Most previous reports of vetiver studies have focused on its anxiolytic or sedative effects proposed to be through GABAergic activities. The proposed mechanism behind these effects is the enhancement of inhibitory neurotransmitter, GABAergic transmission; in addition, it also amplifies the acetylcholine release from the synaptic knob, thereby acting as a short-term memory enhancer during learning or memorizing.

It was also demonstrated to produce significant anticonvulsant activity in animal models; in general, anticonvulsant drugs such as benzodiazepines and valproic acid are used against seizures both in patients and in animals by enhancing GABAergic synaptic transmission.

4.2 Anti-Inflammatory Mechanisms

The anti-inflammatory activity involves modulation of cytokines and inflammatory mediators, while its strong antioxidant capacity stems from free radical scavenging, metal chelation, and enhancement of endogenous antioxidant enzymes.

The stimulation of antioxidant enzyme system network by the plant extract reduces the level of oxidative stress, creating a balance between oxidant and antioxidant systems. Moreover, its antimicrobial activity will prevent the biological source of stimulation towards injury, and the CNS depressant effect will subside the pain of inflammation.

4.3 Anticancer Mechanisms

The anticancer activity of C. zizanioides is frequently linked to the induction of oxidative stress through increased reactive oxygen species (ROS) levels. C. zizanioides oil treatment elevated intracellular ROS in WiDr and T47D cells, correlating with apoptosis induction, while 4T1 cells underwent G2/M arrest without significant ROS increase, suggesting alternative mechanisms of cytotoxicity. Several studies have confirmed the low cytotoxicity of C. zizanioides on normal cells, including HEK 293 kidney cells and L929 fibroblasts, indicating a favorable therapeutic index.

4.4 Antioxidant Mechanisms

Essential oil from vetiver contains sesquiterpenes, which have been reported to be free radical scavengers. The antioxidant capacity is additionally attributed to metal chelation and upregulation of endogenous enzymatic defence systems, as referenced in the anti-inflammatory mechanism above.

5. Scientific Evidence by Area of Use

5.1 Anxiety, Sedation, and Neurological Effects

Preclinical (animal) evidence: Anxiolytic and refreshing effects of VEO aromatherapy have been demonstrated in rats. One study by Cheaha et al. examined the activity of essential oil respiratory intake on sleep-wake patterns and electroencephalogram (EEG) activity in vivo in Wistar rats. The rats inhaling vetiver EO displayed a reduction in percentage time of slow-wave sleep, as well as in total sleep time. Cheaha et al., 2016, reported that vetiver oil enhanced alertness and function of the nervous system in animals.

Limited human evidence: Human subjects who inhaled vetiver essential oil showed faster reaction times and stimulation of sympathetic nerve activity; it was suggested that the oil may help subjects improve performance and alertness during a visual determination task. This study, published in Biomedical Research (Matsubara et al., 2012), involved exposure to volatiles emitted from vetiver roots during a visual display terminal task. Only short-term exposure was assessed, while no long-term cognitive or physiological effects were tested.

In another study using a mouse model of amnesia induced by scopolamine, vetiver significantly inhibited acetylcholinesterase activity and reversed amnesia. This is preclinical evidence only.

ADHD — preliminary and non-peer-reviewed: In 2001, a study done by Dr. Terry Friedman found that vetiver oil appeared effective in treating children with ADHD. The case study was conducted for two years (1999–2001) and involved 40 children between 6 and 12 years old — 20 without ADHD (control group) and 20 with ADHD. The essential oils tested included lavender, vetiver, cedarwood, and a commercial blend; the oils were tested one at a time for 30 days per oil, and the children used an inhalation device at night and inhaled the essential oil about three times a day when they were feeling "scattered." This research was unpublished and has not been replicated in a peer-reviewed, controlled clinical trial. Evidence for this application is therefore preliminary and insufficient to draw conclusions.

Clinical trial registry: A registered clinical trial (NCT05024136) titled "Study on the Efficacy of Vetiver Essential Oil Aroma on Depression/Anxiety People," conducted by Chung Shan Medical University, was recruiting as of 2022, but published peer-reviewed results were not available at the time of writing.

Evidence strength: Preliminary to weak for human applications. Mechanistic and animal studies are suggestive but no well-powered, randomised controlled human trials have been published establishing efficacy for anxiety, ADHD, or sleep disorders.

5.2 Anti-Inflammatory Activity

In vitro and animal evidence: Preclinical studies have demonstrated the efficacy of C. zizanioides extracts in mitigating inflammation, alleviating pain, and combating microbial infections. Many traditional utilities of vetiver have been authenticated when tested using different disease-based pharmacological models taking various extracts of roots, leaves, and root oil as test samples.

Research on the biological activity of VEO in human dermal fibroblasts has been conducted; research on its biological activity in human skin cells is described as scarce, and one study investigated the biological activity in a pre-inflamed human dermal fibroblast model. Results from such cell-culture models show downregulation of inflammatory markers but have not yet been confirmed in randomised human trials.

Evidence strength: Preclinical only. Results from in vitro assays and animal models support anti-inflammatory potential; however, vetiver essential oil is a promising natural product with various biological properties, especially with anti-inflammatory potency, that requires further and more in-depth investigations.

5.3 Antimicrobial Activity

Vetiver essential oil and extracts possess various functional properties, including antioxidant, antibacterial, antifungal, and anticancer activities. Ethanol and hexane extracts exhibit potent antibacterial and antimycobacterial activities.

The oils of clove bud and vetiver both have antimicrobial activity well below their respective cytotoxic concentrations, indicating a broad margin of safety. A 2025 PMC study comparing vetiver, lemongrass, and clove bud oils confirmed in vitro antibacterial activity of vetiver oil against relevant dermatological pathogens and noted that the results support the potential of clove bud and vetiver oils for safe topical antimicrobial applications.

Evidence strength: Moderate in vitro; no published randomised clinical trials in humans for infectious disease indications.

5.4 Antioxidant Activity

Vetiver oil possesses various biological activities, such as antioxidant, antibacterial, and anti-inflammatory properties, making it beneficial in aromatherapy. In vitro assays including DPPH radical-scavenging assays, ABTS assays, and reducing-power assays have repeatedly confirmed antioxidant capacity attributable mainly to the sesquiterpene fraction. These findings are preclinical; no clinical antioxidant trials in humans have been published.

Evidence strength: Consistent in vitro data; human relevance unconfirmed.

5.5 Anticancer Potential

The root essential oil of vetiver is rich in phytochemicals with documented antimicrobial, anti-inflammatory, and antioxidant activities, and although its anticancer potential remains underexplored, the complex phytochemical profile positions it as a promising multi-target therapy, particularly for colorectal and lung cancers.

A 2025 PMC study (Morsi Karousa et al.) investigated vetiver essential oil from Qatar against colorectal (HCT-116) and lung (A549) cancer cells. Recent studies demonstrate that many EO constituents exert antiproliferative, pro-apoptotic, anti-inflammatory, antioxidant, and anti-angiogenic effects, acting through mechanisms involving mitochondrial dysfunction, oxidative stress modulation, and interference with key oncogenic signalling pathways.

Findings from polyherbal extract studies revealed promising anticancer activity against HeLa and MCF cell lines.

Evidence strength: Early-stage in vitro and in silico only. No clinical trials in cancer patients have been conducted. All anticancer data currently comes from cell-culture and computational modelling studies.

5.6 Insect Repellent Activity

Vetiver grass has been reported to have insect-repellent properties against ants, ticks, cockroaches, termites, mosquitoes, weevils, and beetles. Laboratory investigations have identified the active constituents responsible:

The constituents α- and β-vetivone, khusimone, zizanal, and epizizanal were found to be repellent to insects. Studies on nootkatone as a specific constituent have progressed furthest. RIBB studies concluded that 20% nootkatone repelled mosquitoes at a rate comparable to commercially available DEET (7%) or picaridin (5%), and nootkatone has the potential to be an efficacious repellent against adult Aedes mosquitoes.

A 2023 PMC study examined the combined use of vetiver oil with β-caryophyllene oxide against four mosquito species. The study evaluated mosquito-repellent activity of β-caryophyllene oxide 1% (BCO), vetiver oil 2.5% (VO), and their binary mixtures against Aedes aegypti, Aedes albopictus, Anopheles minimus, and Culex quinquefasciatus, using an excito-repellency assay system; in general, the compound mixtures produced a much stronger response in the mosquitoes than single compounds.

A 2023 PMC study on biological safety reported that vetiver oil and their constituents showed no phototoxic potential or any significant genotoxic response; none of the tested constituents induced a significant increase of micronucleated cells. Vetiver oil and two constituents (valencene and vetiverol) could be considered as safe repellents, effective against mosquitoes.

Evidence strength: Moderate, with well-replicated laboratory and some human arm-bioassay data for nootkatone specifically. Vetiver oil as a whole-formula repellent has supportive preclinical data.

5.7 Wound Healing and Skin Health

Keywords associated with VEO research include trans-isovalencenol, khusimol, vetiselinenol, collagen III, inflammation, cholesterol, tissue remodelling, anti-diabetic activity, skin health, and wound healing, with authors indicating that VEO has potential wound-healing activities. The proposed mechanism involves fibroblast modulation: stimulation of collagen synthesis and reduction of inflammatory mediators in skin cells. Evidence at the time of writing comes from cell culture (human dermal fibroblast) models and animal studies. No randomised clinical wound-healing trials have been published.

Evidence strength: Preclinical only.

5.8 Antidiabetic and Metabolic Effects

Vetiveria zizanioides, commonly known as vetiver or khus, shows promising treatment in hyperlipidaemia without compromising reproductive health in traditional medicine. Studies assessed the antihyperlipidaemic effect of aqueous and ethanolic extract from Vetiveria zizanioides in high-fat diet-induced Wistar albino rats; aqueous and ethanolic extract was administered orally for 8 weeks at dosages of 300/600 mg/kg in Wistar albino rats; body weight, histology, and biochemical assessments were analysed. Body weight was decreased 50% in the aqueous extract VZ-treated group compared to the control group. These findings are from animal models only.

Evidence strength: Animal models only; no published human clinical data for metabolic or antidiabetic indications.

6. Body Systems and Health Areas Associated with Vetiver

• Central Nervous System / Neurological: Anxiolytic and sedative effects (proposed GABAergic and cholinergic mechanisms); alertness and cognitive performance (limited human data); anticonvulsant potential (animal data).
• Immune and Inflammatory System: Modulation of cytokines and inflammatory mediators; COX-pathway activity demonstrated in vitro.
• Integumentary (Skin): Wound healing via fibroblast and collagen modulation (preclinical); antimicrobial protection against dermatological pathogens; antioxidant protection from oxidative skin damage.
• Microbial Defence: Broad-spectrum antibacterial and antifungal activity against multiple strains including Staphylococcus aureus and Escherichia coli (in vitro).
• Oncological (Experimental): Anticancer activity in colorectal, breast, and lung cancer cell lines through ROS-mediated apoptosis and cell-cycle arrest (in vitro and in silico only).
• Metabolic / Endocrine: Antihyperlipidaemic and antidiabetic activity (animal models).
• Insect-Vector Control: Repellent and insecticidal activity against mosquitoes, ants, ticks, termites, and cockroaches, with the most robust data for the constituent nootkatone.

7. Dosage Forms and Dosages Reported in Studies

The following dosages are reported as described in the scientific sources cited; they are not recommendations.

• Oral (animal models, antihyperlipidaemic study): Aqueous and ethanolic extract of Vetiveria zizanioides was administered orally for 8 weeks at dosages of 300/600 mg/kg in Wistar albino rats.
• Inhalation (human alertness study): Volatiles emitted from the roots of Vetiveria zizanioides were used to suppress the decline in attention during a visual display terminal task, as published in Biomedical Research 2012; 33: 299–308. Specific inhalation concentrations were not standardised in the study design.
• Inhalation (ADHD pilot study, Friedman 2001, unpublished): The oils were tested one at a time for 30 days per oil; children used an inhalation device at night and inhaled the essential oil about three times a day when they were feeling "scattered."
• Topical/insect repellent (laboratory): Significant contact escape responses in Aedes aegypti and Aedes albopictus to all test compounds at concentrations between 2.5 and 5% were observed.
• Nootkatone (arm bioassay): 20% nootkatone repelled mosquitoes at a rate comparable to commercially available DEET (7%) or picaridin (5%).
• Fragrance/cosmetic (regulatory context): Maximum acceptable concentrations for acetylated vetiver oil in cosmetic product categories are defined by IFRA standards; specific limits differ by product category as determined by RIFM safety assessments.

No standardised oral therapeutic dose of vetiver root extract or essential oil in humans has been established in peer-reviewed clinical literature to date. Despite promising preclinical findings, significant gaps remain in understanding the pharmacokinetics and bioavailability of C. zizanioides and the molecular mechanisms underlying its medicinal applications.

8. Safety Considerations

8.1 Regulatory Classification

Vetiver oil (CAS 8016-96-4) is a concentrated aromatic and flavor ingredient which may be used in flavor and fragrance compounds according to legal and IFRA or FEMA GRAS/FDA guidelines.

8.2 Skin Sensitisation

The European Commission's Scientific Committee on Consumer Safety (SCCS) has evaluated acetylated vetiver oil (AVO), a chemically modified fragrance derivative. The SCCS has noted that Acetylated Vetiver Oil (AVO) is a moderate skin sensitiser in test animals; on the basis of the safety assessment carried out using a conservative approach, the SCCS considers the use of AVO with 1% alpha-tocopherol as a fragrance ingredient in cosmetic leave-on and rinse-off type products safe at the concentrations proposed by IFRA.

Acetylated Vetiver Oil contains some constituents that belong to the chemical group of aldehydes and ketones that are known to be reactive towards biological entities such as DNA and proteins; however, the overall health risk of such components is likely to be negligible at the concentrations intended to be used in cosmetics products.

Considering the results of the HRIPT study and the fact that AVO has been used for years in cosmetics without evidence of sensitising potential, it is unlikely that AVO would be causing contact allergy in humans.

8.3 Genotoxicity and Phototoxicity

Results on phototoxic and genotoxic hazard revealed that vetiver oil and their constituents showed no phototoxic potential or any significant genotoxic response; none of the tested constituents induced a significant increase of micronucleated cells with or without metabolic activation.

8.4 Cytotoxicity at High Concentrations

The safety of using essential oils for treatment is still of concern; high concentrations of essential oils may have cytotoxic effects on human skin cells such as keratinocytes. The antimicrobial concentrations of vetiver oil were documented to be below cytotoxic concentrations in comparative studies, but this favourable margin applies at specific tested concentrations and should not be extrapolated to undiluted use.

8.5 Research Limitations and Gaps

During compilation of the literature, it was observed that many traditional utilities of vetiver received authentication when tested using different disease-based pharmacological models; however, systematic studies for isolation of active constituents and establishing their mechanisms of action are still required to be validated.

Current research limitations, gaps in knowledge, and future directions for investigating medicinal applications of C. zizanioides remain to be fully explored. The overwhelming majority of pharmacological data is derived from in vitro cell assays, animal models, and isolated constituent studies rather than randomised controlled trials in humans, which substantially limits the ability to draw therapeutic conclusions.

References

• Pharmacological and Therapeutic Potential of Chrysopogon zizanioides (Vetiver): A Comprehensive Review of Its Medicinal Applications and Future Prospects — PMC / Biomolecules 2025
• Chrysopogon zizanioides — A review on its pharmacognosy, chemical composition and pharmacological activities — Environmental Science and Pollution Research, Springer (2021)
• Molecular and chemical characterization of vetiver, Chrysopogon zizanioides (L.) Roberty, germplasm — PubMed (2015)
• Vetiver, Vetiveria zizanioides (L.) Nash: Biotechnology, Biorefineries, and the Production of Volatile Phytochemicals — Plants, MDPI (2025)
• Potential therapeutic effect of Chrysopogon zizanioides (Vetiver) as an anti-inflammatory agent — PubMed (2021)
• An overview of the chemical composition and bioactivities of Vetiveria zizanioides (L.) Nash essential oil — ScienceDirect / Food Research International (2023)
• A Review on Chemical Composition, Oil Quality, and Bioactivity of Vetiver Essential Oil — Indian Journal of Pharmaceutical Sciences (2024)
• Chemical Composition, Antioxidant, and Antimicrobial Activities of Vetiveria zizanioides (L.) Nash Essential Oil Extracted by Carbon Dioxide Expanded Ethanol — PMC / Molecules (2019)
• Chrysopogon zizanioides (Vetiver) Essential Oil from Qatar Targets AKT1 and STAT3 in Colorectal and Lung Cancer — PMC (2025)
• Different Cytotoxic Effects of Vetiver Oil on Three Types of Cancer Cells, Mainly Targeting CNR2 on TNBC — PMC (2022)
• Modification of sleep-waking and electroencephalogram induced by vetiver essential oil inhalation — PMC / Journal of Intercultural Ethnopharmacology (2016)
• Anxiolytic and nootropic activity of Vetiveria zizanioides roots in mice — PubMed (2015)
• Behavioral avoidance and biological safety of vetiver oil and its constituents against Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus — PMC (2023)
• Synergistic Repellent and Irritant Effects of a Mixture of β-Caryophyllene Oxide and Vetiver Oil against Mosquito Vectors — PMC (2023)
• Nootkatone Is an Effective Repellent against Aedes aegypti and Aedes albopictus — PMC (2021)
• In vitro antioxidant and cytotoxic activities of polyherbal extracts from Vetiveria zizanioides, Trichosanthes cucumerina, and Mollugo cerviana on HeLa and MCF-7 cell lines — PMC (2020)
• Comparative evaluation of the antimicrobial, antioxidant, and cytotoxic properties of essential oils from vetiver, lemongrass, and clove buds — PMC (2025)
• Opinion of the SCCS — Final opinion on the safety of Acetylated Vetiver Oil (AVO) — PubMed / Regulatory Toxicology and Pharmacology (2019)
• Traditional and medicinal uses of vetiver — ResearchGate / Journal of Medicinal Plants Studies (2013)
• Biological activity of vetiver (Vetiveria zizanioides) essential oil in human dermal fibroblasts — ResearchGate (2017)
• ClinicalTrials.gov: Study on the Efficacy of Vetiver Essential Oil Aroma on Depression/Anxiety People — NCT05024136
• The Aromatic Roots Indians Turn to for Cooling Relief — Reasons to be Cheerful (2025)