What is Khus?
Khus, known in Sanskrit as Ushira and in English as Vetiver, is the fragrant root of Vetiveria zizanioides (syn. Chrysopogon zizanioides), a perennial grass belonging to the Poaceae family. One of Ayurveda’s most celebrated cooling herbs, Khus has been used for over 3,000 years to manage Pitta-related conditions, fever, skin disorders, mental stress, and urinary complaints. The roots are aromatic and are used to make cooling mats, room fresheners, and medicinal preparations that harness their distinctively earthy, calming fragrance.
Ayurvedic Properties of Khus
| Property | Detail |
|---|---|
| Sanskrit Name | Ushira, Virana, Abhayamula, Seyvalam |
| Rasa (Taste) | Tikta (Bitter), Madhura (Sweet) |
| Guna (Quality) | Laghu (Light), Ruksha (Dry) |
| Virya (Potency) | Sheeta (Cold) |
| Vipaka (Post-digestive) | Madhura (Sweet) |
| Dosha Effect | Pacifies Pitta and Kapha; can mildly aggravate Vata in excess |
| Part Used | Roots, root essential oil |
Health Benefits of Khus
1. Cooling and Fever Management
Khus is one of Ayurveda’s most powerful Pittahara (Pitta-pacifying) herbs. Its Sheeta (cold) virya makes it excellent for managing fever (Jwara), heatstroke, burning sensations, and excess body heat. Khus root water (water infused with dried vetiver roots) is a traditional summer drink in India that cools the body, prevents heat exhaustion, and replenishes electrolytes.
2. Skin Health and Anti-inflammatory Action
Khus root paste and Khus-infused oils are used topically for a range of skin conditions including acne, eczema, psoriasis, and inflammatory rashes. The anti-inflammatory and antioxidant compounds in Khus reduce skin redness, control excess sebum production, and promote cell regeneration. It is a key ingredient in Ayurvedic skin-cooling formulations.
3. Stress, Anxiety, and Sleep Support
In aromatherapy and Ayurveda, Khus essential oil (vetiver oil) is valued for its grounding, calming, and deeply relaxing effects on the mind. It helps reduce anxiety, mental fatigue, and insomnia by calming an overactive nervous system. Ayurvedic formulations use Khus in Shirodhara (forehead oil drip) and Abhyanga (massage oil) for stress-related conditions.
4. Urinary Tract Health and Diuretic Action
Khus’s diuretic and cooling properties make it highly effective for urinary conditions, particularly those characterised by burning urination (Mutradaha), urinary tract infections, and kidney heat. Khus root decoction is a traditional Ayurvedic remedy for these conditions, promoting healthy urine flow and reducing urinary tract inflammation.
5. Digestive Support
While primarily a cooling herb, Khus also has mild digestive properties. It helps relieve hyperacidity, gastric ulcers, and Pitta-related digestive disturbances. The Madhura vipaka makes it nourishing and soothing to the gastrointestinal mucosa, unlike many other bitter herbs that may be harsh on the digestive lining.
6. Antioxidant and Hepatoprotective Activity
Khus roots contain nootkatone, isovalencenol, and other sesquiterpene compounds with significant antioxidant and hepatoprotective properties. These protect liver cells from oxidative damage and support detoxification processes. In Ayurvedic practice, Khus is incorporated in formulations for liver health and blood purification.
7. Menstrual Health and Reproductive Support
Khus is used in Ayurvedic formulations for managing dysmenorrhoea (painful periods) and menstrual irregularities associated with excess Pitta. Its cooling and antispasmodic properties help reduce menstrual cramping and excessive uterine heat. It is also used as a mild aphrodisiac and reproductive tonic in classical formulations.
How to Use Khus
| Form | Dosage | How to Take |
|---|---|---|
| Khus Water (root infusion) | 1–2 roots soaked overnight in 1 L water | Drink through the day as a cooling summer beverage |
| Root Decoction (kwatha) | 50–100 ml | Warm or cool, twice daily for urinary and fever conditions |
| Root Powder (churna) | 1–3 g | With cool water, coconut water, or sugarcane juice |
| Essential Oil (topical) | 2–3 drops in carrier oil | For massage, Shirodhara, or skin application |
Side Effects & Precautions
Khus is considered one of the safest Ayurvedic herbs and is well tolerated by most individuals. Its Sheeta (cold) virya may aggravate Vata dosha in elderly persons, those with cold constitutions, or those prone to joint stiffness if used excessively. People with low blood pressure should use it cautiously, as its cooling and diuretic properties may further reduce pressure. Individuals allergic to Poaceae (grass) family plants should avoid it. The essential oil should be diluted before topical application and is not recommended for internal use without qualified guidance.
Classical References
Ushira (Khus) holds a premier position in classical Ayurvedic texts. The Charaka Samhita includes it in the Mutravirechaniya (diuretic) Mahakashaya and Daha Prasamana (burning-relieving) group. The Ashtanga Hridayam lists Ushira among the best herbs for Pitta disorders, fever, and skin diseases. The Sushruta Samhita describes its use in wound care and inflammation management. Classical formulations containing Ushira include Ushirasava, Chandanasava, and Ushira-based cooling formulations (Himasagara Taila).