Valerian root, commonly known as Tagar or Tagara in India, is one of those names we hear when we talk about sleep-health herbs. This root is best known for its possible effects on sleep and relaxation.
But does it support only sleep, or does it offer other benefits too? And how does it help relax the mind for better sleep? Let’s discuss what science says about its benefits and mechanism.
Key Highlights
- Valerian root comes from Valeriana officinalis, a flowering plant native to parts of Europe and Asia.
- Valerenic acid and other compounds may support calming GABA activity in the nervous system.
- Its most studied benefits relate to sleep quality, sleep onset, and relaxation.
- Early research has examined valerian for stress, menstrual cramps, PMS, hot flashes, and restless legs.
- Valerian can cause headaches, dizziness, stomach discomfort, or daytime sleepiness in some people.
What to Know About Valerian Root?
Valerian root comes from the underground stems of an herbaceous perennial flowering plant, Valeriana officinalis. The plant has a long history of use for sleep problems and nervous tension. That’s the reason it’s mostly used in tea, sleep care supplements, and liquid extracts.
What Does Valerian Root Contain?
Valerian root contains approximately 150 chemical compounds that work together to support sleep and calm the mind.
Within these compounds, the most important ones are valerenic acid, valepotriates, volatile oils, gamma-aminobutyric acid (GABA), alongside alkaloids, flavonoids, and other amino acids like tyrosine, arginine, and glutamine.
What is Valerian Root Called in India?
Valerian is most commonly called Sugandhbala or Tagar in India. Other regional names that it carries are:
- Marathi: Tagar Ganthoda, Tagarmool
- Kannada: Mandibattalu, Tagar
- Bengali: Asaroon, Mushkbala
- Gujarati: Tagar Ganthoda
How Does Valerian Root Help the Brain Relax?
Valerian root supports the brain’s calming pathways by enhancing GABA activity, a process that can slow excessive nerve signaling in the brain.
What Are the Benefits of Valerian Root Extracts?
The potential benefits of valerian root include better sleep quality, easier sleep onset, fewer nighttime awakenings, and greater relaxation.
Studies have also examined its role in anxiety, stress, fatigue, menstrual discomfort, menopausal hot flashes, and restless legs.
For Sleep Support
1. Helps a Busy Mind Switch Off & Shortens The Sleep Latency
Valerian is particularly relevant for people who reach bedtime feeling tired but mentally active. Its calming action can make it easier to step away from overthinking. It does not force thoughts to disappear. Instead, it may make the nervous system less reactive, allowing the mind to settle more naturally.
The period between going to bed and falling asleep is known as sleep latency. When stress keeps the brain alert, this period can stretch from a few minutes into an hour or longer.
By supporting relaxation before bedtime, valerian may shorten this transition for some people.
2. Makes Sleep Feel More Restful
Some studies indicate that Valerian may influence slow wave sleep.
Sleep occurs in repeated cycles containing rapid eye movement sleep and non rapid eye movement sleep. Non rapid eye movement, or NREM sleep, includes three stages:
- Stage N1: The light transition between wakefulness and sleep
- Stage N2: A more stable stage in which heart rate and body temperature decrease
- Stage N3: The deepest stage of NREM sleep
Stage N3 is also called slow wave sleep or deep sleep. During this stage, brain activity slows, muscles relax, and the body focuses on physical restoration. Deep sleep also contributes to immune function, energy recovery, and the processing of newly learned information.
In a small clinical study, two weeks of valerian extract helped participants enter slow wave sleep sooner. The average time needed to reach this stage decreased from 21.3 minutes with placebo to 13.5 minutes with valerian. The proportion of slow wave sleep also increased modestly after regular use.
3. Can Help with Repeated Night-Time Restlessness
Waking briefly at night is normal. The problem arises when every awakening is followed by prolonged alertness, worrying, or difficulty returning to sleep.
Valerian’s calming effect may help some people maintain a more settled night and return to sleep more easily after brief disturbances.
4. May Support Sleep Affected by Stress and Anxiety
Stress and anxiety can make it difficult to sleep by keeping the mind and body in a state of alertness. You may feel physically tired but continue thinking, worrying or replaying events after getting into bed.
This mental alertness can delay sleep, increase muscle tension and make you more sensitive to small disturbances at night. Poor sleep may then make stress and anxious feelings harder to manage the following day.
Also Read: Can Valerian Root Help Ease Stress and Anxiety?
5. Maintain Sound Sleep After Menopause
Hormonal changes around menopause can make sleep lighter and more interrupted. Valerian may support the calming processes that help women fall asleep and maintain restful sleep at this stage.
In a study of 100 postmenopausal women with insomnia, valerian was associated with better sleep-quality scores after four weeks. Around 30% of participants taking valerian reported improved sleep, compared with 4% receiving placebo.
6. Support Restless Legs and Related Sleep Problems
Restless legs syndrome causes an uncomfortable urge to move the legs, often while resting at night. These sensations can interrupt sleep and contribute to daytime tiredness.
In an eight-week study of 37 people, valerian was associated with improvements in restless leg symptoms and daytime sleepiness. Its calming and muscle relaxing actions may support more comfortable rest and better sleep.
Recurring symptoms may be connected with iron deficiency, kidney disease, pregnancy or medication and should be assessed properly.
Other Potential Benefits of Valerian Root
Some studies have explored several additional benefits of valerian root, with encouraging findings in specific groups.
7. May Ease Menopausal Hot Flashes
Hot flashes involve sudden warmth, sweating, and changes in blood-vessel activity. Few clinical trials suggest that valerian may help lower their frequency and severity in postmenopausal women.
Valerian’s possible influence on GABA and serotonin pathways may support the nervous system processes involved in temperature regulation. A triple-blind clinical trial reported improvements after one and two months of valerian use.
8. Support Premenstrual Symptoms
Premenstrual syndrome can involve irritability, tension, mood changes and physical discomfort. A clinical study reported improvements in the emotional, behavioural and physical symptoms of PMS among participants taking valerian.
GABA activity can change across the menstrual cycle. Valerian’s influence on this calming pathway may explain its potential role in supporting emotional balance and physical comfort before periods.
9. Ease Menstrual Cramps
Menstrual cramps occur partly because of contractions in the uterus. Valerian has antispasmodic properties, which means some of its compounds may help relax smooth muscle and ease the intensity of these contractions.
In a randomised study of 100 students, participants taking valerian reported lower menstrual pain severity compared with those receiving placebo. The findings suggest a potential role for valerian in supporting menstrual comfort.
Severe, worsening, or unusual pelvic pain needs medical assessment.
10. May Ease Fatigue in People Receiving Cancer Care
Cancer-related fatigue is a persistent, overwhelming sense of physical and mental exhaustion that often does not improve even after adequate rest or sleep.
An eight-week study of 227 people receiving cancer care examined valerian for sleep. Though it did not produce a significant improvement in the main sleep-quality outcome, participants reported less fatigue.
11. May Support Sleep and Anxiety Affected by Certain HIV Medicines
Efavirenz, a medicine used in HIV care, can cause sleep and mood-related side effects in some people. A four-week pilot study reported improvements in insomnia and anxiety among participants taking valerian.
12. May Support Cognitive Function After Heart Surgery
Temporary changes in memory, attention, or thinking can occur after coronary artery bypass surgery. A study of 61 patients found better cognitive scores in the valerian group than in the placebo group after surgery.
Researchers proposed that effects on serotonin receptors, inflammation, and oxidative stress might be involved.
13. May Ease Obsessive Compulsive Symptoms
Obsessive Compulsive Disorder (OCD) is a mental health condition that causes a cycle of unwanted, repeating thoughts (obsessions) and repetitive behaviors or mental acts.
One eight-week study of 31 adults found lower obsessive compulsive symptom scores with valerian than with placebo.
However, OCD requires assessment and evidence-based mental health support. Valerian should not replace prescribed care.
14. May Support Restlessness and Concentration in Children
Studies have explored valerian for restlessness, impulsivity, and concentration difficulties in children. Some used valerian alone, while others combined it with lemon balm. GABA-related calming activity may explain the observed changes.
The evidence is preliminary, and children should not be given valerian for ADHD, sleep or behavioural concerns without advice from a qualified healthcare professional.
15. May Support Sleep and Comfort in Fibromyalgia
Fibromyalgia can involve widespread discomfort, poor sleep and fatigue. In a small study of 30 people, valerian baths used three times a week for three weeks were associated with better sleep, less discomfort and improved wellbeing.
The study examined bathing with valerian rather than taking an oral extract. Warm water and the bathing routine may also have influenced the results.
How Does Valerian Compare with Other Sleep-Supporting Herbs?
| Herb | Best suited to | What makes it different |
|---|---|---|
| Valerian | Difficulty settling and falling asleep | Directly associated with sleep readiness and night-time relaxation |
| Ashwagandha | Stress that affects sleep | Primarily supports the body’s response to ongoing stress |
| Hops | Restlessness before bed | Often paired with valerian in night-time formulas |
| Jatamansi | A restless or unsettled mind | Traditionally used in Ayurveda for calmness and sleep |
| Chamomile | A gentle bedtime ritual | Commonly taken as a mild, soothing tea |
| Lemon balm | Nervousness with digestive uneasiness | Supports calmness while also soothing the digestive system |
The better choice depends on why sleep is difficult. Valerian is more relevant when falling asleep is the main concern.
Ashwagandha fits better when ongoing stress affects both day and night. A carefully designed blend can address several parts of the sleep stress cycle together.
Valerian Root vs Valerian Root Extract
A valerian root extract concentrates selected components from the root, while plain root powder contains ground plant material. The extraction method and level of standardisation can affect the final composition.
How Can Valerian Root Be Used For Sleep?
Valerian root can be used as tea, powder, supplements, tinctures, or liquid extracts to support relaxation and better sleep.
Valerian Tea
Dried valerian root can be steeped in hot water and taken as part of an evening routine. Tea offers a gentle way to use the herb, although its strength can vary with the amount of root and steeping time.
Its earthy smell and flavour are quite strong, so some people combine it with milder herbs such as chamomile or lemon balm.
Root Powder
Dried valerian root may be ground into powder and packed into capsules. Root powder contains the whole plant material but is generally less concentrated than an extract.
Capsules and Tablets
These are convenient for people who want a measured serving without valerian’s strong taste. Always check whether the label lists raw root powder or concentrated extract.
Liquid Extracts and Tinctures
Liquid preparations are measured in drops and mixed with water. Their strength depends on the extraction ratio and concentration stated on the label.
Multi Herb Sleep Supplements
Valerian is frequently combined with herbs that address related reasons for poor sleep. Hops may complement night-time relaxation, while ashwagandha is more closely associated with stress support. Jatamansi is traditionally used for mental restlessness and sleep comfort.
How Is Valerian Root Extract Made?
An extract is made by using a liquid to draw selected compounds out of the dried root. The liquid is later removed or reduced, leaving a more concentrated preparation.
- Water Based Extraction: Aqueous extraction uses water to collect water-soluble components from the root. It avoids the use of organic extraction solvents and can be used to produce a concentrated herbal ingredient.
- Hydroalcoholic Extraction: This method uses water and alcohol in selected proportions. Because different plant compounds dissolve in different liquids, this method can capture a broader chemical profile.
- Standardised Dry Extraction: After extraction, the liquid can be dried into a powder. Manufacturers may standardise the finished extract to maintain a more consistent level of selected compounds from one batch to another.
Effectiveness of Nano-Formulation
Nano formulation changes how extracted plant material is dispersed or delivered. Smaller or encapsulated particles can improve solubility and protect certain compounds as they pass through the digestive system.
Nano formulation describes the delivery system. ZeroHarm’s nano-tablets are specially designed to dissolve in the duodenum (pH 6-7.5). This is your body’s perfect spot for absorption, making sure you get the maximum amount of nutrients.
How Does Sleep Ease Support Restful Sleep?
ZeroHarm’s natural sleep aid, Sleep Ease, uses valerian as part of a four-herb formula. Instead of repeating the same sleep function with several ingredients, each extract contributes a different type of support.
| Ingredient per tablet | Formulation role |
|---|---|
| Valerian root extract (117 mg) | Helps the nervous system prepare for rest |
| Hops extract (90 mg) | Complements night-time relaxation |
| Ashwagandha root extract (96 mg) | Supports the body’s response to everyday stress |
| Jatamansi root extract (97 mg) | Traditionally supports a calm mind and settled sleep |
The ingredients are prepared using aqueous extraction and a nano formulation process to improve the dispersibility and absorption of plant compounds.
Sleep Ease is intended for people whose sleep is affected by a combination of mental restlessness, everyday stress, and difficulty settling at night.
How Much Valerian Root Should You Take?
For effective sleep and anxiety relief, 300-600 mg of valerian root extract daily is generally recommended. Aim to take it about 30 minutes to an hour before bedtime.
Is Valerian Root Extract Safe?
Valerian is generally well tolerated when used for short periods, but it can cause side effects. Reported effects include:
- Headache
- Dizziness
- Stomach discomfort or diarrhoea
- Weakness or tiredness
- Vivid dreams
- Daytime sleepiness
Valerian may increase drowsiness when combined with alcohol, sedatives or other substances that slow the central nervous system.
Pregnant or breastfeeding women, children, people with liver conditions, and anyone taking regular medication should speak with a healthcare professional before using it. Avoid driving or operating machines if valerian makes you drowsy.
What Should You Look for in a Valerian Supplement?
Choose a product that clearly tells you:
- How much valerian it provides per serving
- Whether it contains root powder or root extract
- Which other active ingredients are included
- How and when it should be taken
- Which extraction method is used
- Whether unnecessary colours or preservatives are present
- Which manufacturing and quality standards are followed
Avoid comparing products by the front-label claims alone. A lower amount of concentrated extract and a higher amount of raw root powder do not necessarily provide the same preparation.
How Long Does Valerian Root Take to Work?
Some people feel more relaxed within 30 minutes to two hours of taking valerian. Changes in overall sleep quality may become clearer after two to four weeks of consistent use.
The effect can depend on the preparation, amount, bedtime routine, and reason for poor sleep. Valerian is better evaluated over several nights than after a single use.
Final Thoughts
Valerian root may be a helpful addition to a wellness routine focused on restful sleep, relaxation, and overall health support. Emerging research has also explored its potential benefits for stress, menstrual comfort, and menopausal wellness.
Choose a quality supplement with clearly listed ingredients and usage instructions. If you take medication, have an existing health condition or experience ongoing sleep problems, consult a healthcare professional before use.
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