Gotu Kola (Centella asiatica), also known as Asiatic pennywort or Indian pennywort, is one of the most extensively used medicinal herbs in both Ayurvedic and Traditional Chinese Medicine. Native to the tropical and subtropical regions of Asia — including India, Sri Lanka, Madagascar, and southern China — it has been in continuous therapeutic use for thousands of years, earning names in various cultures that translate roughly to "leaf of longevity." In contemporary supplementation, Gotu Kola is primarily valued for its effects on connective tissue and collagen synthesis, vascular health and venous insufficiency, cognitive function, and wound healing — all areas where modern clinical research has provided meaningful, if still evolving, evidence.
The Active Compounds: Triterpenoids and Beyond
Gotu Kola's pharmacological activity is driven primarily by a group of pentacyclic triterpenoid saponins called asiaticosides and madecassosides. The four main active triterpenoids are:
- Asiaticoside — the dominant compound in most extracts; stimulates collagen synthesis and promotes wound healing by activating fibroblasts
- Madecassoside — exhibits potent anti-inflammatory and antioxidant activity; protects skin and vascular tissue from oxidative damage
- Asiatic acid and madecassic acid — the aglycone forms of the above; directly involved in signalling pathways that regulate collagen production and extracellular matrix organisation
Together, these compounds are often referred to as "TECA" (Titrated Extract of Centella Asiatica) or "CICA" — the latter term widely used in the K-Beauty industry, where centella is a celebrated ingredient in formulations targeting skin sensitivity, redness, and barrier repair. In supplement contexts, standardised extracts specifying their triterpenoid content are the most reliable form. Explore our herbal supplements for Gotu Kola in standardised extract and whole herb formats.
Connective Tissue and Collagen Synthesis
The most clinically documented effect of Gotu Kola is its ability to stimulate collagen synthesis in connective tissue — including skin, blood vessel walls, joints, and tendons. Asiaticosides activate fibroblasts (the cells responsible for producing collagen) and increase the expression of collagen type I and type III, supporting tissue repair, wound healing, and the long-term structural integrity of connective tissue.
This mechanism has significant practical implications. In clinical research, topical and oral Gotu Kola preparations have been studied for their effects on wound healing (including post-surgical wounds, burns, and chronic ulcers), keloid formation and hypertrophic scarring, stretch marks, and skin ageing. Standardised centella extract has been included in dermatological formulations specifically for its collagen-stimulating properties. Its effects in this area complement collagen supplementation from a different angle — rather than supplying collagen peptides, Gotu Kola activates the body's own collagen-producing machinery. Our collagen supplements collection provides both approaches for those seeking comprehensive connective tissue support.
Vascular Health and Venous Insufficiency
Gotu Kola has one of the strongest evidence bases among herbal supplements for venous insufficiency — a condition characterised by impaired venous return from the lower limbs, manifesting as swelling, heaviness, discomfort, and visible varicose veins. The triterpenoids in Gotu Kola strengthen venous walls by stimulating collagen synthesis in the vessel walls, improving microvascular tone, and reducing the capillary permeability that leads to tissue oedema.
Multiple randomised controlled trials have found that Gotu Kola extract significantly reduces ankle swelling, heaviness in the legs, and related symptoms in individuals with chronic venous insufficiency. European phlebology (venous medicine) guidelines have included centella asiatica in phytotherapy recommendations for this condition. For those experiencing circulatory discomfort in the lower limbs — a common concern in people who stand or sit for extended periods — Gotu Kola is among the most evidence-backed natural options available. Browse our cardiovascular supplements for Gotu Kola alongside other vascular health products.
Cognitive Function and Neurological Support
Gotu Kola has a long history of use in Ayurveda as a medhya rasayana — a brain-rejuvenating herb — and contemporary research is beginning to provide mechanistic explanations for this traditional classification. Animal studies and preliminary human research have found that Gotu Kola extract improves cognitive function through several mechanisms: enhancing neurotransmitter synthesis, providing neuroprotective antioxidant activity in brain tissue, supporting the integrity of neuronal cell membranes, and potentially stimulating the production of dendritic arbors (the branching extensions of neurons that form synaptic connections).
Human clinical trials have reported improvements in attention, short-term memory, and information processing speed following Gotu Kola supplementation in healthy older adults. Research in populations with mild cognitive impairment has found encouraging results for both cognitive performance and mood. The evidence is not yet sufficient to make strong clinical claims, but Gotu Kola's neuroprotective and cognitive-supporting profile is well-grounded mechanistically and supported by a growing body of human data.
[tip:Gotu Kola is available as both whole herb powder and standardised extract. Standardised extracts (typically specifying asiaticoside or triterpenoid content) provide more predictable and consistent effects, particularly for vascular and cognitive applications. For venous support, doses in research typically range from 60–180 mg of standardised TECA per day in divided doses. For cognitive support, 250–750 mg of standardised extract has been used in trials.]Wound Healing, Anti-Inflammatory, and Skin Applications
Traditional use of Gotu Kola for wound healing has been validated in modern research. Topical and oral centella preparations have demonstrated accelerated wound closure, reduced scar formation, and improved wound tensile strength in clinical studies. The mechanism involves both the direct stimulation of fibroblast proliferation and collagen deposition (via asiaticosides) and anti-inflammatory activity (via madecassosides and their aglycones), which moderates the inflammatory phase of wound healing without suppressing it entirely.
In skin science, centella's combination of collagen-stimulating, anti-inflammatory, and antioxidant properties has made it one of the most prominent botanical ingredients in dermatology and cosmetic formulation — particularly in Korean skincare (K-Beauty), where "cica" products formulated with centella asiatica have become a dominant trend for sensitive, reactive, and barrier-compromised skin.
Mood, Sleep, and Stress Resilience
Gotu Kola has been classified in some Ayurvedic frameworks as a mild adaptogen, and research has examined its effects on anxiety and mood with positive preliminary findings. Animal studies have demonstrated anxiolytic (anxiety-reducing) and antidepressant-like effects, and several small human trials have reported improvements in mood, reduced anxiety scores, and improved sleep quality. The mechanisms proposed include modulation of GABA activity — the brain's primary inhibitory neurotransmitter — and effects on serotonergic pathways. While the clinical evidence in this area is more preliminary than for vascular applications, it is consistent with the plant's traditional characterisation as a calming, nervine herb.
Safety and Dosage Guidance
Gotu Kola is generally well tolerated at typical supplemental doses. Mild gastrointestinal discomfort, occasional headache, and photosensitivity have been reported in some users — beginning at a lower dose and titrating up can reduce the likelihood of these reactions. The herb is best taken with food. Standard supplemental doses for oral use range from 300–750 mg of standardised extract per day.
Gotu Kola can be consumed as a supplement, as dried herb preparations for making infusions, or in combination with other connective tissue and vascular support ingredients.
[warning:Rare cases of liver injury (hepatotoxicity) have been associated with Gotu Kola supplementation. The risk appears low but is not absent — particularly at high doses and with prolonged use. Do not exceed recommended doses and take breaks from supplementation. Gotu Kola is contraindicated in individuals with low blood pressure (hypotension), as it may lower blood pressure further. It should not be used during pregnancy or breastfeeding. Those with liver conditions or taking hepatotoxic medications should consult a healthcare professional before use. Discontinue and seek medical advice if you develop unusual fatigue, jaundice, or right-sided abdominal discomfort while supplementing.] [products: now-foods-gotu-kola-450-mg-100-veg-capsules, aliness-gotu-kola-centella-asiatica-asiatic-pennywort-400-mg-100-veg-capsules, hepatica-gotu-kola-standardized-extract-90-veg-capsules, medica-herbs-gotu-kola-520-mg-60-capsules, formeds-bicaps-gotu-kola-60-capsules, biowen-gotu-kola-330-mg-120-capsules] [note:All Medpak products are shipped from within the European Union, ensuring fast and reliable delivery across Europe with no customs fees or import complications.]
