Centella Asiatica · வல்லாரை கீரை · Gotu Kola Leaf Powder
The Ancient “Brain Herb” That Sharpens Memory, Calms Anxiety & Rebuilds Your Nervous System from the Inside Out
Vallarai Keerai (Brahmi) is one of only a handful of herbs in the entire Siddha and Ayurvedic pharmacopoeia classified as a Medhya Rasayana — a compound that directly nourishes and rejuvenates the brain and nervous system. Centella Asiatica has been prescribed by traditional healers for over 3,000 years to sharpen memory, deepen concentration, reduce anxiety, and promote restful sleep — and modern neuroscience research on its key compounds (asiaticoside, madecassoside, and triterpenoids) is now confirming what Tamil grandmothers have always known. Moolihai’s Vallarai Powder is made from whole Centella Asiatica leaves, naturally harvested, shade-dried to preserve heat-sensitive active compounds, and stone-ground into a fine powder with zero additives. Whether you mix it into warm water as a daily brain tonic, blend it into a hair mask for scalp health, or add it to your morning smoothie, this is the real Vallarai — the herb Tamil students have consumed before exams for generations.
Clinically Studied Brain Herb
100% Pure Centella Asiatica
Shade-Dried · No Chemicals
Ships via DHL/UPS/FedEx
What Is Vallarai (Brahmi / Gotu Kola)?
Vallarai Keerai (வல்லாரை கீரை) is a small, creeping, fan-leafed herb that grows naturally in the marshy wetlands and riverbanks of South India, Sri Lanka, and Southeast Asia. Botanically known as Centella Asiatica and belonging to the parsley family (Apiaceae), this unassuming plant has earned an extraordinary reputation across multiple ancient medical traditions — Siddha, Ayurveda, Traditional Chinese Medicine, and even European herbalism — as a premier brain and nerve tonic.
In Tamil culture, Vallarai is revered as “the herb of intelligence” — children are fed Vallarai juice or Vallarai kanji (porridge) before school and especially during exam season to enhance memory retention and mental clarity. The Sanskrit name “Brahmi” links it to Brahma, the Hindu god of creation and knowledge, while another Sanskrit name — Mandukaparni — literally means “frog leaf,” describing the shape of its distinctive rounded leaves. The herb’s key bioactive compounds are triterpenoid saponins, specifically asiaticoside, madecassoside, asiatic acid, and madecassic acid. These compounds have been studied in over 200 peer-reviewed publications for their effects on cognitive function, wound healing, collagen synthesis, and anxiety modulation. In Ayurvedic classification, Centella Asiatica is one of only four herbs designated as Medhya Rasayana — the highest category of brain-nourishing rejuvenatives. The other three are Shankhapushpi, Yashtimadhu (Liquorice), and Guduchi (Giloy), but Vallarai is considered the most versatile and widely accessible of the four.
8 Benefits of Vallarai Powder
From sharpening memory to healing wounds to growing thicker hair — Centella Asiatica earns its place as one of the most versatile herbs in traditional medicine.
Memory & Cognitive Enhancement
This is Vallarai’s signature benefit — the one that earned it the name “Brahmi” and the Medhya Rasayana classification. The triterpenoid saponins in Centella Asiatica have been shown in clinical studies to support hippocampal function, enhance synaptic plasticity, and improve both short-term memory recall and long-term memory consolidation. Tamil families have traditionally given Vallarai juice to children during exam periods, and multiple human trials have demonstrated measurable improvements in working memory, attention span, and processing speed in both young adults and elderly participants after 8-12 weeks of regular consumption. For best results, take consistently as a daily tonic rather than sporadically.
Anxiety & Stress Reduction
Centella Asiatica has a remarkable dual action — it sharpens mental acuity while simultaneously calming anxiety, a rare combination that most stimulants cannot achieve. Research suggests the triterpenoids modulate GABAergic neurotransmission, effectively reducing the neurochemical “noise” that drives anxious thoughts without causing sedation or mental fog. Traditional Siddha practitioners classify Vallarai as a Sattvic herb — one that promotes mental balance, clarity, and peace rather than agitation. Multiple customers report improved sleep quality alongside better daytime focus, consistent with the traditional understanding that a calm nervous system is a precondition for optimal cognitive performance.
Hair Growth & Scalp Health
Vallarai’s ability to strengthen blood vessels and stimulate circulation extends directly to the scalp, where improved blood flow to hair follicles may support stronger, thicker hair growth. When applied topically as a hair mask (mixed with coconut oil or yoghurt), the triterpenoids penetrate the scalp to nourish follicles and soothe inflammatory scalp conditions like dandruff and mild dermatitis. In Tamil Nadu, Vallarai oil infusions have been used for generations as a traditional hair treatment, often combined with Moolihai’s Bhringraj Oil for a comprehensive hair care regimen. The internal consumption of Vallarai powder also supports hair health from within by strengthening the nervous system and circulation that feed hair follicles.
Skin Healing & Collagen Production
Centella Asiatica is one of the most widely used herbs in modern dermatology and skincare — “cica cream” products in the Korean beauty industry are directly derived from this plant. Asiaticoside and madecassoside stimulate fibroblast activity, increasing Type I collagen synthesis which is essential for wound healing, scar reduction, and maintaining skin elasticity. Traditional Siddha practitioners have used Vallarai paste topically to accelerate healing of burns, cuts, surgical wounds, and chronic skin conditions like eczema and psoriasis. For skincare purposes, you can apply Vallarai paste externally while also consuming the powder internally for a synergistic inside-out approach to skin health.
Circulatory & Vascular Support
The triterpenoids in Centella Asiatica have been clinically studied for their ability to strengthen blood vessel walls and improve microcirculation. This vascular-strengthening effect has made it a subject of interest for chronic venous insufficiency — a condition where blood pools in the legs — and for reducing varicose vein symptoms. In Siddha medicine, Vallarai is traditionally described as a “blood purifier” that cleanses and strengthens the vascular system. The improved circulation extends benefits to virtually every organ system, supporting better nutrient delivery to the brain, scalp, skin, and peripheral tissues.
Nerve Repair & Protection
Beyond enhancing cognitive function, Centella Asiatica demonstrates neuroprotective properties — meaning it may help protect neurons from damage caused by oxidative stress, inflammation, and age-related degeneration. Research has shown that the herb’s active compounds support nerve growth factor (NGF) production and promote dendritic branching — the physical structures that neurons use to communicate with each other. In Siddha medicine, Vallarai is traditionally prescribed for nerve-related conditions including peripheral neuropathy, tremors, and neuralgia. Combining it with Moolihai’s Jatamansi powder creates a traditional Siddha formulation targeting comprehensive nervous system rejuvenation.
Digestive & Gut Health
While primarily known as a brain herb, Vallarai also has significant benefits for the digestive system. Its antibacterial and anti-inflammatory properties have been traditionally used to treat stomach ulcers, mouth ulcers, and urinary tract infections. The herb’s wound-healing action extends to the gut lining, where it may help repair damage from gastric irritation and support the integrity of the intestinal barrier. Siddha practitioners often prescribe Vallarai decoctions for digestive complaints, particularly when accompanied by nervousness or anxiety — recognising the gut-brain connection that modern medicine is now confirming.
Sleep Quality Improvement
Although Vallarai is not a sedative, its calming effect on the nervous system has made it a traditional remedy for insomnia and disturbed sleep. By reducing the overactive neural signalling that keeps the mind racing at bedtime, Vallarai helps create the conditions for natural, restorative sleep without morning grogginess. The Siddha approach to sleep disorders emphasises calming and nourishing the nervous system rather than chemically inducing unconsciousness — and Vallarai is the cornerstone herb for this approach. For sleep support, the traditional recommendation is to take Vallarai powder with warm milk and a teaspoon of Moolihai’s Marthandam Honey before bed.
Names for Pennywort Around the World
Few herbs have as many names as Centella Asiatica — a testament to how many cultures have independently discovered its extraordinary properties.
Tamil
வல்லாரை கீரை (Vallarai Keerai)
Sanskrit
Mandukaparni · Brahma Manduki
Hindi
ब्राह्मी (Brahmi) · Brahmi Buti
Malayalam
കുടകൻ (Kudakan) · Kutanna
Kannada
ಒಂದೆಲಗ (Ondelaga)
Telugu
మండూక బ్రహ్మి (Mandooka Brahmi)
Sinhala
ගොටු කොළ (Gotu Kola)
Chinese
積雪草 (Ji Xue Cao)
How to Use Vallarai Powder
Vallarai works both internally (consumed as a tonic) and externally (applied to skin and hair). Here are five proven methods from the Siddha tradition.
Daily Brain Tonic (Internal)
Mix 1 teaspoon (3-5g) of Vallarai Powder into a cup of warm water and stir well. Add a teaspoon of Moolihai’s Marthandam Honey for taste and additional antimicrobial benefits. Drink this once daily on an empty stomach in the morning for best absorption. The traditional Tamil recommendation is to consume Vallarai consistently for at least 48 days (one Mandalam cycle in Siddha medicine) to experience full cognitive benefits. For a richer preparation, mix the powder into warm milk instead of water — the fat in milk helps absorb the fat-soluble triterpenoids more effectively.
Vallarai Kanji (Traditional Porridge)
For a more substantial traditional preparation, prepare Vallarai Kanji: cook red rice with extra water until it becomes a soft, soupy porridge. Stir in 1-2 teaspoons of Vallarai Powder along with a splash of coconut milk and a piece of Moolihai’s Sukku Karupatti (Dry Ginger Palm Jaggery) for sweetness. This is the traditional breakfast given to children during exam season across Tamil Nadu and Sri Lanka. The combination of easily digestible carbohydrates, healthy fats from coconut milk, and the brain-nourishing compounds of Vallarai creates a complete cognitive-support meal. Adults can enjoy this as a light dinner to promote restful sleep.
Smoothie & Juice Blend
For a modern approach, add 1 teaspoon of Vallarai Powder to your daily smoothie or fresh juice. It pairs particularly well with banana, mango, and spinach smoothies — the mild, slightly bitter, earthy flavour of Vallarai blends easily with sweeter fruits. You can also stir it into Moolihai’s Green Teas (Moringa Tulsi or Lemon Ginger) for a brain-boosting herbal tea upgrade. Start with ½ teaspoon if you’re new to the taste and gradually increase to a full teaspoon over a week. For those who dislike the flavour entirely, mixing it with a strong-tasting juice like pineapple or orange effectively masks the taste while delivering the full benefits.
Hair & Scalp Mask (External)
Mix 2 tablespoons of Vallarai Powder with enough coconut oil or yoghurt to form a smooth paste. Apply thoroughly to your scalp and work through the length of your hair. Massage the scalp gently for 5 minutes in circular motions to stimulate blood flow, then leave the mask on for 30-45 minutes before washing with a mild shampoo. For a more intensive treatment, combine Vallarai Powder with Moolihai’s Bhringraj Oil — Bhringraj is Siddha medicine’s premier hair growth herb, and the two together create a potent traditional scalp therapy. Use this mask 2-3 times per week for best results; expect visible improvement in hair texture and scalp health within 4-6 weeks.
Skin Healing Paste (External)
For skin concerns — scars, minor wounds, eczema patches, or general skin brightening — make a paste of Vallarai Powder with rose water or aloe vera gel. Apply to the affected area and leave for 20-30 minutes before rinsing. The asiaticoside in Centella Asiatica stimulates collagen production and accelerates tissue repair, which is why “cica” (Centella) has become a star ingredient in modern Korean skincare. For a comprehensive face mask, combine Vallarai Powder with Moolihai’s Sandalwood Powder and a few drops of Moolihai’s Lavender Essential Oil — this creates a soothing, healing, and brightening mask suitable for all skin types including sensitive skin.
What Our Customers Say
This is a good product. My personal experience with Moolihai has shown an improvement in my concentration and memory. As a discerning customer, I am not easily satisfied, but Moolihai has truly impressed me. Another positive aspect I’ve noticed is its effectiveness in aiding my mother’s chronic constipation; consuming this powder with warm water has consistently facilitated smoother bowel movements for her. I highly recommend it based on my own experience, although I advise consulting medical professionals if needed.
I have consumed Moolihai when I was a teenager. That improved my memory, cognition, analytical, and logical skills at a very young age. After a long gap of more than a decade, I decided to try it again as I was being forgetful about daily tasks and being very stressed due to work-related commitments.
This Moolihai product is truly effective. I use it to create Ayurvedic medicine, and I’ve seen positive results in many of my patients.
Vallarai Powder at a Glance
Available Sizes
100g · 450g · 1kg
Form
Fine Powder (Shade-Dried Leaves)
Origin
India
Certification
FSSAI Certified
Key Compounds
Asiaticoside · Madecassoside · Triterpenoids
Classification
Medhya Rasayana (Brain Tonic)
Processing
Shade-Dried · Stone-Ground
Diet
Vegan · Gluten-Free · No Additives
Ships Worldwide from Tamil Nadu
Every order is carefully packed and dispatched from our facility in Tamil Nadu, India via premium express carriers.
United States
5-7 Business Days
United Kingdom
5-7 Business Days
Canada
5-7 Business Days
Vallarai Powder FAQ
This is the single most important question about this product, and the confusion is widespread. In India, the name “Brahmi” is used for two completely different plants: Centella Asiatica (Vallarai / Gotu Kola — this product) and Bacopa monnieri (Neer Brahmi / Water Hyssop). They are botanically unrelated, look completely different, and contain different active compounds. Centella Asiatica has round, fan-shaped leaves and grows on creeping stems in moist soil. Its key actives are triterpenoid saponins (asiaticoside, madecassoside). Bacopa monnieri has small, oval, succulent leaves and grows in water. Its key actives are bacosides. Both are classified as Medhya Rasayana (brain tonics) in Ayurveda, which is why both ended up sharing the “Brahmi” name — but they work through different biochemical pathways. Moolihai’s product is 100% Centella Asiatica (Vallarai), the Tamil Siddha tradition’s primary brain herb. If you specifically want Bacopa monnieri, that is a different product. Many practitioners recommend using both herbs together for comprehensive cognitive support, as their mechanisms are complementary rather than redundant.
Vallarai is not a stimulant — it does not produce an immediate “boost” like caffeine. Instead, it works by gradually nourishing and strengthening neural pathways over time. In traditional Siddha practice, the minimum recommended course is one Mandalam (48 days) of daily consumption before expecting significant results. Clinical research broadly aligns with this: most human studies showing measurable cognitive improvements used 8-12 week supplementation periods. However, many users report subtler benefits sooner — improved sleep quality within the first 1-2 weeks, reduced anxiety within 2-3 weeks, and noticeable memory improvements by week 4-6. The key is daily consistency; skipping days resets progress. Take 1 teaspoon daily with warm water or milk, ideally in the morning on an empty stomach. Moolihai customers like Santhiya and Sandy both noted concentration and memory improvements with regular use.
Yes — giving Vallarai to school-age children is one of the oldest and most widespread practices in Tamil households. The traditional method is Vallarai Kanji (porridge made with red rice, coconut milk, and Vallarai powder) or simply mixing a small amount into warm milk with jaggery. For children aged 5-10, start with ¼ to ½ teaspoon daily. For children over 10, ½ to 1 teaspoon daily is the standard traditional dose. The herb is generally well-tolerated by children and does not cause the jitteriness or sleep disruption associated with stimulant-based focus aids. In Tamil Nadu, many families increase their children’s Vallarai intake during exam season and maintain a lower maintenance dose throughout the year. Always introduce it gradually and consult your paediatrician if your child has any existing health conditions or is taking medication.
Absolutely — Vallarai is widely used in traditional Tamil hair care for its ability to strengthen hair follicles, improve scalp circulation, and promote thicker growth. For external application, mix 2 tablespoons of Vallarai Powder with warm coconut oil to form a paste, apply to the scalp, massage for 5 minutes, and leave for 30-45 minutes before washing. For enhanced results, combine with Moolihai’s Bhringraj Oil — Bhringraj (Eclipta alba) is Siddha medicine’s most renowned hair growth herb, and the two together address different aspects of hair health (Vallarai improves circulation and follicle nourishment, while Bhringraj directly stimulates hair growth cycles). Using Vallarai powder internally (as a daily tonic) alongside external scalp application provides the most comprehensive approach — supporting hair health from both inside and outside simultaneously. Expect 6-8 weeks of consistent use before visible improvement in hair density and texture.
While Vallarai is generally considered a gentle, nourishing herb, most traditional practitioners and modern herbalists recommend caution during pregnancy. Some classical Siddha texts advise against consuming Centella Asiatica in medicinal doses during pregnancy, as it may have mild emmenagogue (menstruation-promoting) effects at higher doses. The very small amounts that might be present in a traditional meal (such as a few leaves in a kootu or chutney) are generally not a concern, but concentrated powder supplementation should be discussed with your obstetrician or a qualified Siddha physician. During breastfeeding, the guidance is less restrictive — many traditional practitioners consider moderate doses safe for nursing mothers — but professional consultation is still recommended. After the postpartum period, Vallarai is traditionally used as a restorative tonic to help rebuild mental clarity and physical energy.
Vallarai is generally very well-tolerated, and side effects at standard doses (1-2 teaspoons daily) are rare. However, there are some important considerations. People taking sedative medications or anti-anxiety drugs should consult their doctor, as Vallarai’s calming effects could theoretically amplify sedation. Those on blood-thinning medications should also seek medical advice, as some triterpenoids may have mild effects on platelet aggregation. People with liver conditions should use Vallarai under medical supervision, as there are rare case reports of hepatotoxicity with very high or prolonged doses of Centella Asiatica supplements. At standard dietary doses, the herb has been consumed safely by millions of people for thousands of years. Start with ½ teaspoon daily and increase to 1 teaspoon after a week to assess your tolerance. Some people experience mild stomach upset initially, which typically resolves within a few days as the body adjusts.
Disclaimer: Statements regarding this product have not been evaluated by the FDA or Indian Medical Association. This product is not intended to diagnose, treat, cure, or prevent any disease. Traditional Siddha and Ayurvedic references are provided for informational purposes only. Individual results may vary. Consult a qualified healthcare professional before use, especially during pregnancy, breastfeeding, or while taking prescription medications including sedatives, anti-anxiety drugs, or blood thinners.



Mark –
Good quality
Velesque –
Pennywort contains Triterpenoids that help reduce anxiety and improve mental health.
Luan –
The chemical compound called Triterpenes is linked to chronic insufficiency effects of Gotu Kola. Triterpenes in pennywort induce cardiac glycosides (organic compounds) production that increases heart force and contraction rate.
santhiya (verified owner) –
This is a good product. My personal experience with Moolihai has shown an improvement in my concentration and memory. As a discerning customer, I am not easily satisfied, but Moolihai has truly impressed me. Another positive aspect I’ve noticed is its effectiveness in aiding my mother’s chronic constipation; consuming this powder with warm water has consistently facilitated smoother bowel movements for her. I highly recommend it based on my own experience, although I advise consulting medical professionals if needed.
Rithi (verified owner) –
The aroma and flavor resemble the original plant. It appears to be pure.
Reetha (verified owner) –
My sleep has improved a lot since I started using this!
sandy (verified owner) –
I have consumed Moolihai when I was a teenager. That improved my memory, cognition, analytical, and logical skills at a very young age. After a long gap of more than a decade, I decided to try it again as I was being forgetful about daily tasks and being very stressed due to work-related commitments.
Mala (verified owner) –
I like all Moolihai products, bought this for my mom’s health. Can use it in daily food preparation. Superb.
sahi (verified owner) –
This Moolihai product is truly effective. I use it to create Ayurvedic medicine, and I’ve seen positive results in many of my patients.