Benefits
Wound Healing and Scar Improvement
TECA (Total Triterpenic Fraction of Centella Asiatica) has well-established wound healing effects. Multiple trials show topical application improves wound healing, reduces scar formation, treats keloids and hypertrophic scars. Arpaia 1990 and others established this as foundational application.
Chronic Venous Insufficiency
Multiple European trials show gotu kola extract (TECA, Centellase®) improves CVI symptoms — leg heaviness, edema, capillary fragility. Pointel 1987 and Cesarone 1992 trials established efficacy. Mechanism: collagen synthesis support, microcirculation improvement.
Anxiety and Cognitive Support
Bradwejn 2000 trial showed gotu kola attenuated startle response in anxiety disorders. Wattanathorn 2008 trial showed cognitive improvements in elderly. Modest evidence for anxiolytic and cognitive effects; mechanism includes GABA modulation.
Burn Treatment / Skin Healing
Topical and oral TECA used for burn treatment, post-surgical healing. Reduces inflammation, supports tissue regeneration. Component of medical-grade scar treatment products.
Stretch Mark Prevention/Treatment
Centella-containing creams used during pregnancy and postpartum for stretch mark prevention. Mauro 1991 trial showed reduced stretch mark development with topical application. Modest but consistent evidence.
Mechanism of action
Collagen Synthesis Stimulation
Triterpenes (especially asiaticoside, madecassoside) stimulate fibroblast proliferation and collagen type I and III synthesis. Foundational mechanism for wound healing, scar improvement, and connective tissue applications.
Microcirculation Enhancement
Improves capillary integrity and microcirculation — basis for venous insufficiency and capillary fragility applications.
GABA Modulation (Anxiolytic)
Some triterpenes modulate GABA-A receptors — basis for anxiolytic effects. Modest activity.
Neurotrophic Effects (BDNF)
Animal studies show centella increases BDNF and neurogenesis — basis for cognitive applications. Mechanism for theoretical anti-aging brain effects.
Antioxidant / Anti-Inflammatory
Direct antioxidant activity plus anti-inflammatory effects via NF-κB modulation. Contributes to multiple applications.
Clinical trials
Multiple European RCTs of TECA (60-120 mg/day) for chronic venous insufficiency.
CVI patients across multiple trials.
Significant improvements in symptoms (leg heaviness, edema, pain) and microcirculation parameters. Established TECA as evidence-based CVI treatment in European phytomedicine.
Single-dose RCT of gotu kola (12 g dried plant) vs placebo on acoustic startle response in healthy subjects.
40 healthy subjects.
Significantly attenuated startle response (anxiolytic biomarker) vs placebo. Suggested anxiolytic effects without sedation. Single-dose; limited generalizability.
About this ingredient
GOTU KOLA (CENTELLA ASIATICA) is a SMALL HERBACEOUS PLANT native to ASIA, AFRICA, AUSTRALIA, and tropical AMERICAS. Distinguished by RENIFORM (kidney-shaped) leaves growing on creeping stems. Used in AYURVEDIC MEDICINE (Sanskrit: 'BRAHMI' — though this name is also confusingly applied to Bacopa monnieri; centella is sometimes called 'Indian pennywort' or 'mandukparni'), TRADITIONAL CHINESE MEDICINE, and INDONESIAN HEALING traditions for over 2,000 years.
KEY POSITIONING: traditional 'longevity herb' and 'cognitive tonic' in Ayurveda; wound healing herb in TCM; modern European phytomedicine for chronic venous insufficiency.
KEY ACTIVE COMPOUNDS: TRITERPENE SAPONINS — (1) ASIATICOSIDE; (2) MADECASSOSIDE; (3) ASIATIC ACID; (4) MADECASSIC ACID. Standardized extracts often quantify 'TECA' (Total Triterpenic Fraction of Centella Asiatica) or 'TTFCA' — typically 30% total triterpenes. BRANDED FORMS: CENTELLASE® (Italy), CENTIDERM® (topical wound healing), MADECASSOL® (medical wound care).
EVIDENCE-BASED USES: (1) WOUND HEALING / SCAR IMPROVEMENT — well-established (Arpaia 1990); topical and oral; (2) CHRONIC VENOUS INSUFFICIENCY — established European phytomedicine (Pointel 1987); (3) Anxiety (Bradwejn 2000); (4) Cognitive support / age-related cognitive concerns; (5) Burn treatment; (6) Stretch mark prevention/treatment (topical); (7) Keloid and hypertrophic scar prevention.
CRITICAL CAUTIONS: (1) BRAHMI CONFUSION — 'Brahmi' refers to BOTH Centella asiatica and Bacopa monnieri in Ayurveda; verify identification on supplement labels; both have cognitive uses but different active compounds and applications; (2) HEPATOTOXICITY — RARE case reports of liver enzyme elevations with gotu kola; mechanism unclear; AVOID with: pre-existing liver disease, elevated ALT/AST, combination with hepatotoxic medications; monitor LFTs during long-term use; (3) PREGNANCY — TOPICAL gotu kola is widely used in pregnancy for stretch marks (Centella-containing creams like Trofolastin, Verum) with reasonable safety data; ORAL CONCENTRATED EXTRACTS in pregnancy have limited safety data; theoretical uterotonic effects in some sources; AVOID oral supplementation in pregnancy; topical use considered acceptable; (4) PEDIATRIC USE — limited safety data; AVOID without pediatric guidance; (5) DROWSINESS — at higher doses; caution with driving/machinery; (6) PRE-SURGERY — discontinue 1-2 weeks before (sedation, theoretical bleeding); (7) DIABETES — modest hypoglycemic effects; monitor; (8) DOSE — 60-120 mg TECA-standardized extract daily; whole herb 1-2 g/day; topical 1-2% TECA cream/gel for wound healing/scarring; (9) DURATION — for CVI: typically 4-8 weeks improvement; can be used long-term; for cognitive: longer-term (3-6 months) for full effects; (10) STANDARDIZATION — 'TECA' standardization is most clinical research foundation; whole-herb products vary widely; verify product specifies triterpene content; (11) 'CENTELLA' VS 'GOTU KOLA' — same plant; different names from different traditions; (12) For ANXIETY/COGNITION — gotu kola is one of several traditional herbs (alongside ashwagandha, bacopa, rhodiola); not necessarily superior; reasonable component of integrative protocols; (13) SCAR TREATMENT — for keloid and hypertrophic scars, comprehensive approach (silicone sheets, pressure garments, intralesional steroids, topical TECA) better than single intervention; (14) AYURVEDIC TRADITION — gotu kola considered 'medhya rasayana' (cognitive rejuvenator) in Ayurveda; long traditional use supports general safety; modern research validates several mechanisms.