Khasa (Khasa (Vetiver))
Khasa, botanically known as Chrysopogon zizanioides, is a fragrant grass valued in Ayurveda for its cooling and calming properties. It is used to alleviate stress, promote skin health, and support wound healing. While classical texts mention various forms of 'Khasa', modern research focuses on the therapeutic potential of Chrysopogon zizanioides.
Botanical name: Chrysopogon zizanioides. Also known as: Khas, Khus, Vetiver, Khaskhas, Ushira, Sugandhi, Bala, Vetiveria zizanioides, Sandalwood fan, Sevendra, Virina, Venarramula, Cuscus Grass, Sugandhi Valo, Valo, Khasa, Gandar, Bena, Baladaberu, Mudivala, Lamanch, Bala Deberu, Ramaceam, Vetivelu, Vettiveru, Khus, Virana.
Properties
GABAergic pathway modulation, Keratinocyte proliferation, Fibroblast activity enhancement, Pro-inflammatory cytokine expression reduction, Disruption of bacterial membranes
Dosage
The appropriate dosage of Khas depends on various factors, including the user's age, health condition, and the specific form being used. It is best to consult with an Ayurvedic practitioner for personalized guidance. Here are some general dosage guidelines: Essential Oil: 2-5 drops in a diffuser or 1-2 drops (diluted in a carrier oil at least 1:100) for topical massage. Perform a patch test first to rule out sensitivity. Root Powder: 1-3 grams mixed with warm water or honey, once daily. ½-1 teaspoon. Decoction: Boil 10-20 grams of dried roots in 500 ml water until reduced by half. Strain and drink 50-100 ml twice daily. Khas Water: Soak a small bunch of roots in drinking water overnight and consume the next morning.
Classical attributes
- Rasa: Madhura (Sweet), Tikta (Bitter)
- Virya: ["Shita (Cooling)"]
- Vipaka: ["Madhura (Sweet)"]
Benefits
- Dahahara (Relieves burning sensation)
- Trishna Nigrahana (Controls thirst)
- Vishahara (Detoxifying)
- Shukrala (Increases semen)
Traditional uses
- Daha (Burning sensation)
- Trishna (Excessive thirst)
- Jwara (Fever)
- Raktapitta (Bleeding disorders)
Dosha effects
- vata: balancing
- kapha: balancing
- pitta: balancing
Preparation methods
- Essential Oil: Extracted from the roots and used in aromatherapy, perfumes, and skincare products.
- Root Powder: Dried roots are ground into a powder for internal consumption.
- Decoction (Kwath/Kudineer): Boil dried roots in water to create a concentrated liquid.
- Infusion: Soak the roots overnight in water to create a cooling and aromatic drink.
- Paste: Ground roots mixed with water or oils for topical application.
- Arq-e-Usheer (Distillation): Vetiver roots are distilled to extract aromatic water, which is consumed or applied for cooling effects.
- Khas Syrup: Khus essence is added to sugar, water, and citric acid syrup and used to flavor milkshakes and yogurt drinks like lassi.
Contraindications
- Pregnancy and Breastfeeding: Likely unsafe during pregnancy and should be avoided as it might cause a miscarriage. Best to avoid it during breastfeeding, as effects on a nursing infant are unknown.
- Children: High internal doses should be avoided in children under 2 years old.
- Medications: Individuals on antihypertensive or sedative drugs should consult healthcare providers before use. Vetiver's mild blood-pressure-lowering effect can be problematic for hypotensive patients, potentially leading to dizziness. Combined with CNS depressants, it may amplify sedation, so avoid use before driving.
- Liver Conditions: People with liver conditions must monitor use, as sesquiterpenes are metabolized by hepatic enzymes.
- Skin Irritation: Undiluted oil can irritate sensitive skin; a patch test is always recommended.
- Allergic Reactions: Rare cases of contact dermatitis have been reported; discontinue use if a rash appears.
Side effects
- Skin Irritation: Undiluted essential oil can irritate sensitive skin. Always perform a patch test before topical application.
- Allergic Reactions: Rare cases of contact dermatitis have been reported. Discontinue use if a rash appears.
- Hypotension: Vetiver may lower blood pressure, which could be problematic for individuals with hypotension.
- Drowsiness: Vetiver may amplify sedation when combined with CNS depressants.
- Pulmonary Edema: Excessive use may lead to fluid accumulation in the lungs.
- Digestive Discomfort: Excessive use may cause digestive discomfort.
- Pregnancy: Not recommended for pregnant women due to possible effects on fetal development.
- Lethargy: Excessive use may cause dryness or lethargy in some individuals.
- Cough and Cold: Avoid Khas during cough and cold as it might lead to the formation and accumulation of mucus in the respiratory passages due to its Sita (cold) property which might cause difficulty in breathing.
Interactions
- CNS Depressants: May amplify sedation; avoid before driving.
- Blood Pressure Medication: Those on blood pressure medication need medical clearance due to possible additive effects.
- Inform your doctor before combining Khas with other medications.
Clinical evidence
Limited clinical evidence exists for Chrysopogon zizanioides (Vetiver). One RCT and preliminary studies suggest potential benefits for stress relief, skin health, and wound healing. More extensive clinical trials are needed to confirm these findings.
Ayurvedic karmas
- Dahahara (Relieves burning sensation)
- Trishna Nigrahana (Controls thirst)
- Vishahara (Detoxifying)
- Shukrala (Increases semen)
Classical clinical indications
- Daha (Burning sensation)
- Trishna (Excessive thirst)
- Jwara (Fever)
- Raktapitta (Bleeding disorders)