Asiaticoside

Asiaticoside at a Glance

Asiaticoside is the principal ursane-type triterpenoid saponin of gotu kola (Centella asiatica) and the marker compound behind the herb’s centuries-old reputation for wound healing and connective-tissue repair. Its aglycone is asiatic acid, and it co-occurs with the oleanane saponin madecassoside (whose aglycone is madecassic acid) in the standardised “centelloside” fraction used clinically.

The honest evidence posture: the strongest, most real-world signal is topical — asiaticoside drives fibroblast collagen synthesis and appears in the long-marketed Centella extracts (TECA / Madecassol / TTFCA) for wounds and scars. The oral story is complicated by pharmacology — asiaticoside is barely absorbed intact and is hydrolysed to asiatic acid before it reaches the circulation, so much of what “oral asiaticoside” does is really asiatic-acid activity. Almost every positive human result used a standardised extract, not the isolated saponin. Safety is reassuring at culinary/therapeutic levels (low), with one historical topical tumour-promotion finding worth flagging.

Established Uses

Asiaticoside’s one genuinely established, real-world role is topical skin and wound repair. It is a defined active of the Centella asiatica titrated extracts marketed for decades — TECA (titrated extract of Centella asiatica), TTFCA, and the topical Madecassol — used for wounds, burns, and hypertrophic/scar management ^{7,8,9Reference 7Sasaki S et al. · 1972Studies on the mechanism of action of asiaticoside (Madecassol) on experimental granulation tissue and cultured fibroblasts and its clinical application in systemic sclerodermaView study →Reference 8Bylka W et al. · 2013Centella asiatica in cosmetologyView study →Reference 9Agra LC et al. · 2015Systematic reviewTriterpenes with healing activity: a systematic reviewView study →}. In this setting it stimulates fibroblast proliferation, type I collagen synthesis, and epithelialisation ^{1,3,8Reference 1Shukla A et al. · 1999In vitroIn vitro and in vivo wound healing activity of asiaticoside isolated from Centella asiaticaView study →Reference 3Lee J et al. · 2006Asiaticoside induces human collagen I synthesis through TGFβ receptor I kinase (TβRI kinase)-independent Smad signalingView study →Reference 8Bylka W et al. · 2013Centella asiatica in cosmetologyView study →}. This is a topical/extract use, not evidence for the isolated saponin taken orally.

Asiaticoside vs. Asiatic Acid — The Prodrug Relationship

The single most important fact for reading asiaticoside’s evidence is that the glycoside and its aglycone are not interchangeable across routes. Asiaticoside is a large, polar trisaccharide saponin: applied topically it acts directly on skin fibroblasts, but taken orally it is poorly absorbed and extensively hydrolysed by gut microbiota to asiatic acid, which is the main triterpene actually measured in plasma ^{18,19,20Reference 18Songvut P et al. · 2019Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteersView study →Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →Reference 20Wright KM et al. · 2023RCTBioanalytical method validation and application to a phase 1, double-blind, randomized pharmacokinetic trial of a standardized Centella asiatica (L.) Urban water extract product in healthy older adultsView study →}.

Human pharmacokinetic studies make this stark — after oral standardised Centella extract, the parent glycosides asiaticoside and madecassoside are rarely or not detectable in plasma, while their aglycones asiatic acid and madecassic acid rise dose-dependently ^{19,20Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →Reference 20Wright KM et al. · 2023RCTBioanalytical method validation and application to a phase 1, double-blind, randomized pharmacokinetic trial of a standardized Centella asiatica (L.) Urban water extract product in healthy older adultsView study →}. The practical consequences:

• Topical claims (collagen, scar, wound) can reasonably be attributed to asiaticoside itself acting on fibroblasts ^{1,3,5Reference 1Shukla A et al. · 1999In vitroIn vitro and in vivo wound healing activity of asiaticoside isolated from Centella asiaticaView study →Reference 3Lee J et al. · 2006Asiaticoside induces human collagen I synthesis through TGFβ receptor I kinase (TβRI kinase)-independent Smad signalingView study →Reference 5Tang B et al. · 2011Asiaticoside suppresses collagen expression and TGF-β/Smad signaling through inducing Smad7 and inhibiting TGF-βRI and TGF-βRII in keloid fibroblastsView study →}.
• Oral / systemic claims (cognition, mood, systemic anti-inflammatory) are better read as asiatic-acid effects downstream of asiaticoside, and belong as much to asiatic acid as to this molecule ^{19Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →}.

This is why the page keeps the isolate-vs-plant and route distinctions explicit throughout.

What It's Used For

The evidence divides cleanly by route: a mechanistically solid, clinically-adjacent topical/fibroblast base, and a preclinical (in-vitro / rodent) systemic base whose oral relevance is capped by the poor bioavailability above.

Evidence by IndicationStrength of support · Beta

Support is an experimental score — weighted by study type (human > animal > in vitro) and volume. A beta, not a validated metric. Human data is extract-level (not isolate), so scores stay measured by design.

01Wound Healing & Collagen SynthesisPromising52%In-vivo rodent wounds + fibroblast mechanism + marketed topicals ^{1,2,3,8Reference 1Shukla A et al. · 1999In vitroIn vitro and in vivo wound healing activity of asiaticoside isolated from Centella asiaticaView study →Reference 2Shukla A et al. · 1999Asiaticoside-induced elevation of antioxidant levels in healing woundsView study →Reference 3Lee J et al. · 2006Asiaticoside induces human collagen I synthesis through TGFβ receptor I kinase (TβRI kinase)-independent Smad signalingView study →Reference 8Bylka W et al. · 2013Centella asiatica in cosmetologyView study →}

02Scar & Keloid ModulationShaky40%Biphasic collagen control; keloid-fibroblast TGF-β suppression ^{5,6Reference 5Tang B et al. · 2011Asiaticoside suppresses collagen expression and TGF-β/Smad signaling through inducing Smad7 and inhibiting TGF-βRI and TGF-βRII in keloid fibroblastsView study →Reference 6Unahabhokha T et al. · 2015Molecular signalings in keloid disease and current therapeutic approaches from natural based compoundsView study →}

03Anti-InflammatoryShaky34%LPS-fever rat (HO-1) + atopic-dermatitis model ^{10,11Reference 10Wan J et al. · 2013AnimalAntipyretic and anti-inflammatory effects of asiaticoside in lipopolysaccharide-treated rat through up-regulation of heme oxygenase-1View study →Reference 11Lee JH et al. · 2020AnimalInhibitory effect of Centella asiatica extract on DNCB-induced atopic dermatitis in HaCaT cells and BALB/c miceView study →}

04Cognition & NeuroprotectionShaky26%β-amyloid memory rescue + neuritogenesis (rodent/in-vitro) ^{12,13,14Reference 12Zhang Z et al. · 2017AnimalAsiaticoside ameliorates β-amyloid-induced learning and memory deficits in rats by inhibiting mitochondrial apoptosis and reducing inflammatory factorsView study →Reference 13Qi FY et al. · 2014Neuroprotective effects of asiaticosideView study →Reference 14Nalinratana N et al. · 2018Differences in neuritogenic activity and signaling activation of madecassoside, asiaticoside, and their aglycones in Neuro-2a cellsView study →}

05Antidepressant-LikeShaky20%One CUMS mouse model (PKA/CREB/BDNF) ^{15Reference 15Wang L et al. · 2020AnimalAsiaticoside produces an antidepressant-like effect in a chronic unpredictable mild stress model of depression in mice, involving reversion of inflammation and the PKA/pCREB/BDNF signaling pathwayView study →}

Mechanisms

Pharmacokinetics

Asiaticoside behaves like a classic saponin glycoside: large, polar, poorly membrane-permeant, and a poor oral-bioavailability drug. After oral standardised Centella extract in humans, the parent glycosides asiaticoside and madecassoside are rarely or not detected in plasma, while their aglycones — asiatic acid and madecassic acid — appear and rise dose-dependently ^{19,20Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →Reference 20Wright KM et al. · 2023RCTBioanalytical method validation and application to a phase 1, double-blind, randomized pharmacokinetic trial of a standardized Centella asiatica (L.) Urban water extract product in healthy older adultsView study →}. Gut-microbial hydrolysis to the aglycone is the dominant oral fate; asiatic acid is the main circulating active form ^{18,19Reference 18Songvut P et al. · 2019Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteersView study →Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →}. Solubility-enhancing formulations (indigenous bioenhancers) roughly doubled plasma triterpene-glycoside exposure in dogs, underscoring how absorption-limited the native saponin is ^{22Reference 22Boonyarattanasoonthorn T et al. · 2022Increase water solubility of Centella asiatica extract by indigenous bioenhancers could improve oral bioavailability and disposition kinetics of triterpenoid glycosides in beagle dogsView study →}. Topically, the saponin acts locally on fibroblasts without needing systemic absorption. A Centella water extract showed low potential for cytochrome-P450-mediated interactions in vitro ^{21Reference 21Wright KM et al. · 2020Centella asiatica water extract shows low potential for cytochrome P450-mediated drug interactionsView study →}.

Clinical Trials

There are no clinical trials of isolated asiaticoside. Human data come from standardised Centella asiatica extracts (ECa 233 oral capsules; TECA/TTFCA/Madecassol topicals), whose effects cannot be attributed to this single saponin — especially given that it barely reaches the circulation intact ^{18,19Reference 18Songvut P et al. · 2019Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteersView study →Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →}.

Last checked: July 2026.

Isolate vs. Plant Studies

The split is sharp. Mechanistic and topical work uses the isolated saponin — the collagen-induction, keloid-suppression, antipyretic and neurite studies are all pure-compound experiments ^{1,3,5,10,14Reference 1Shukla A et al. · 1999In vitroIn vitro and in vivo wound healing activity of asiaticoside isolated from Centella asiaticaView study →Reference 3Lee J et al. · 2006Asiaticoside induces human collagen I synthesis through TGFβ receptor I kinase (TβRI kinase)-independent Smad signalingView study →Reference 5Tang B et al. · 2011Asiaticoside suppresses collagen expression and TGF-β/Smad signaling through inducing Smad7 and inhibiting TGF-βRI and TGF-βRII in keloid fibroblastsView study →Reference 10Wan J et al. · 2013AnimalAntipyretic and anti-inflammatory effects of asiaticoside in lipopolysaccharide-treated rat through up-regulation of heme oxygenase-1View study →Reference 14Nalinratana N et al. · 2018Differences in neuritogenic activity and signaling activation of madecassoside, asiaticoside, and their aglycones in Neuro-2a cellsView study →}. But every human study uses a whole standardised extract, never isolated asiaticoside: the PK/safety work is on ECa 233, and the clinical wound/scar tradition is on TECA/Madecassol, defined mixtures of asiaticoside + madecassoside + the aglycones ^{7,18Reference 7Sasaki S et al. · 1972Studies on the mechanism of action of asiaticoside (Madecassol) on experimental granulation tissue and cultured fibroblasts and its clinical application in systemic sclerodermaView study →Reference 18Songvut P et al. · 2019Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteersView study →}. Because oral asiaticoside converts to asiatic acid, isolate potency measured in a dish does not transfer cleanly to an oral human dose — the transferability caveat is unusually strong here.

Prevalence in Nature

Asiaticoside is essentially a Centella asiatica compound — one of the four “centelloside” markers (with madecassoside, asiatic acid and madecassic acid) ^{16,17Reference 16Gray NE et al. · 2018Centella asiatica — phytochemistry and mechanisms of neuroprotection and cognitive enhancementView study →Reference 17Bandopadhyay S et al. · 2023ReviewTherapeutic properties and pharmacological activities of asiaticoside and madecassoside: a reviewView study →}. In raw gotu kola herb it ranges roughly 0.04–2.41% of dry weight, typically the second most abundant marker after madecassoside, and its content varies enormously with accession, growing conditions, plant part and season ^{17Reference 17Bandopadhyay S et al. · 2023ReviewTherapeutic properties and pharmacological activities of asiaticoside and madecassoside: a reviewView study →}. Commercial extracts (TECA, TTFCA, ECa 233) are standardised to far higher total-triterpene levels than the crude herb. Beyond C. asiatica it is reported only at minor levels in related Centella/Hydrocotyle species.

Discovery & Synthesis

Asiaticoside was isolated from Centella asiatica in the 1940s (attributed to Bontems), and the titrated topical extract Madecassol was pharmacologically characterised through the 1950s–70s — early work studied its action on granulation tissue and cultured fibroblasts, with clinical application to systemic scleroderma ^{7Reference 7Sasaki S et al. · 1972Studies on the mechanism of action of asiaticoside (Madecassol) on experimental granulation tissue and cultured fibroblasts and its clinical application in systemic sclerodermaView study →}. Structurally it is the ursane-type aglycone asiatic acid bearing a trisaccharide (glucose-glucose-rhamnose) at C-28, closely related to the pentacyclic triterpene acids ursolic acid and oleanolic acid; the plant sterol β-sitosterol is a common co-occurring lipid.

A practical total synthesis is not well documented — asiaticoside is obtained by extraction from C. asiatica (the economically dominant route, since the plant accumulates it and the standardised fractions are the commercial products), not by synthesis. Semi-synthetic access to the aglycone/derivatives exists for research, but manufacture today is extractive.

Patents: not yet researched (future patent-loop pass).

Toxicity & Safety

Asiaticoside carries a low flag, consistent with gotu kola’s long culinary and medicinal use and the good tolerability of standardised extracts in human PK/safety studies ^{18Reference 18Songvut P et al. · 2019Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteersView study →}. Poor oral absorption further limits systemic exposure. The centellosides are broadly antioxidant rather than pro-oxidant ^{24Reference 24Lim W et al. · 2024Comparison of the antioxidant potency of four triterpenes of Centella asiatica against oxidative stressView study →}, and a Centella triterpene fraction was protective (not toxic) against cyclophosphamide-induced immune/hepatic dysfunction in rats ^{25Reference 25Duggina P et al. · 2015AnimalProtective effect of centella triterpene saponins against cyclophosphamide-induced immune and hepatic system dysfunction in ratsView study →}.

Two honest caveats keep this from being a blank cheque. First, a historical topical finding: repeated skin application of asiaticoside (with cantharidin) produced epidermal tumours and reticuloses in hairless mice, seeding a long-running debate about high-dose topical genotoxicity/tumour-promotion ^{23Reference 23Laerum OD · 1972AnimalReticuloses and epidermal tumors in hairless mice after topical skin applications of cantharidin and asiaticosideView study →}. This is an old, high-dose animal model and has not been borne out in the decades of clinical topical use, but it is why the genotoxicity question is still raised for concentrated topicals. Second, interactions are not comprehensively characterised for the isolate; the reassuring signal is that a Centella water extract showed low CYP450-interaction potential in vitro ^{21Reference 21Wright KM et al. · 2020Centella asiatica water extract shows low potential for cytochrome P450-mediated drug interactionsView study →}. Any reproductive-safety decision belongs on the gotu-kola herb and supplement pages, not here.

Safety at a Glance

✅ Low / no toxicity

• Low toxicity at culinary/therapeutic levels. Long food/medicinal use; standardised extracts well tolerated in human PK/safety studies ^{18Reference 18Songvut P et al. · 2019Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteersView study →}.
• Poor oral absorption limits systemic exposure, and a Centella extract showed low CYP450-interaction potential in vitro ^{19,21Reference 19Songvut P et al. · 2021Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteersView study →Reference 21Wright KM et al. · 2020Centella asiatica water extract shows low potential for cytochrome P450-mediated drug interactionsView study →}.
• Historical topical tumour-promotion finding. Epidermal tumours in hairless mice after repeated high-dose topical asiaticoside — the basis of the genotoxicity debate for concentrated topicals ^{23Reference 23Laerum OD · 1972AnimalReticuloses and epidermal tumors in hairless mice after topical skin applications of cantharidin and asiaticosideView study →}.
• Interactions not fully characterised for the isolate, and pregnancy/lactation is a herb/supplement-level decision, not settled here.

Dosage

There is no established dose for isolated asiaticoside — it has not been dosed as a pure compound in humans, and its poor oral absorption means intact-saponin dosing would be pharmacologically inefficient. Real-world exposure is via standardised Centella asiatica extracts:

These are exposures studied in research and are not a personal recommendation.

References

1. Shukla A, et al. (1999). In vitro and in vivo wound healing activity of asiaticoside isolated from Centella asiatica. Journal of Ethnopharmacology. https://pubmed.ncbi.nlm.nih.gov/10350364/
2. Shukla A, et al. (1999). Asiaticoside-induced elevation of antioxidant levels in healing wounds. Phytotherapy Research. https://pubmed.ncbi.nlm.nih.gov/10189951/
3. Lee J, et al. (2006). Asiaticoside induces human collagen I synthesis through TGFβ receptor I kinase (TβRI kinase)-independent Smad signaling. Planta Medica. https://pubmed.ncbi.nlm.nih.gov/16557473/
4. Nowwarote N, et al. (2013). Asiaticoside induces type I collagen synthesis and osteogenic differentiation in human periodontal ligament cells. Phytotherapy Research. https://pubmed.ncbi.nlm.nih.gov/22628285/
5. Tang B, et al. (2011). Asiaticoside suppresses collagen expression and TGF-β/Smad signaling through inducing Smad7 and inhibiting TGF-βRI and TGF-βRII in keloid fibroblasts. Archives of Dermatological Research. https://pubmed.ncbi.nlm.nih.gov/21240513/
6. Unahabhokha T, et al. (2015). Molecular signalings in keloid disease and current therapeutic approaches from natural based compounds. Pharmaceutical Biology. https://pubmed.ncbi.nlm.nih.gov/25331681/
7. Sasaki S, et al. (1972). Studies on the mechanism of action of asiaticoside (Madecassol) on experimental granulation tissue and cultured fibroblasts and its clinical application in systemic scleroderma. Acta Dermato-Venereologica. https://pubmed.ncbi.nlm.nih.gov/4127803/
8. Bylka W, et al. (2013). Centella asiatica in cosmetology. Postępy Dermatologii i Alergologii. https://pubmed.ncbi.nlm.nih.gov/24278045/
9. Agra LC, et al. (2015). Triterpenes with healing activity: a systematic review. Journal of Dermatological Treatment. https://pubmed.ncbi.nlm.nih.gov/25893368/
10. Wan J, et al. (2013). Antipyretic and anti-inflammatory effects of asiaticoside in lipopolysaccharide-treated rat through up-regulation of heme oxygenase-1. Phytotherapy Research. https://pubmed.ncbi.nlm.nih.gov/22972613/
11. Lee JH, et al. (2020). Inhibitory effect of Centella asiatica extract on DNCB-induced atopic dermatitis in HaCaT cells and BALB/c mice. Nutrients. https://pubmed.ncbi.nlm.nih.gov/32033291/
12. Zhang Z, et al. (2017). Asiaticoside ameliorates β-amyloid-induced learning and memory deficits in rats by inhibiting mitochondrial apoptosis and reducing inflammatory factors. Experimental and Therapeutic Medicine. https://pubmed.ncbi.nlm.nih.gov/28352309/
13. Qi FY, et al. (2014). Neuroprotective effects of asiaticoside. Neural Regeneration Research. https://pubmed.ncbi.nlm.nih.gov/25221579/
14. Nalinratana N, et al. (2018). Differences in neuritogenic activity and signaling activation of madecassoside, asiaticoside, and their aglycones in Neuro-2a cells. Planta Medica. https://pubmed.ncbi.nlm.nih.gov/29719882/
15. Wang L, et al. (2020). Asiaticoside produces an antidepressant-like effect in a chronic unpredictable mild stress model of depression in mice, involving reversion of inflammation and the PKA/pCREB/BDNF signaling pathway. Molecular Medicine Reports. https://pubmed.ncbi.nlm.nih.gov/32705202/
16. Gray NE, et al. (2018). Centella asiatica — phytochemistry and mechanisms of neuroprotection and cognitive enhancement. Phytochemistry Reviews. https://pubmed.ncbi.nlm.nih.gov/31736679/
17. Bandopadhyay S, et al. (2023). Therapeutic properties and pharmacological activities of asiaticoside and madecassoside: a review. Journal of Cellular and Molecular Medicine. https://pubmed.ncbi.nlm.nih.gov/36756687/
18. Songvut P, et al. (2019). Safety and pharmacokinetics of standardized extract of Centella asiatica (ECa 233) capsules in healthy Thai volunteers. Planta Medica. https://pubmed.ncbi.nlm.nih.gov/30699457/
19. Songvut P, et al. (2021). Pharmacokinetics and metabolomics investigation of an orally modified formula of standardized Centella asiatica extract in healthy volunteers. Scientific Reports. https://pubmed.ncbi.nlm.nih.gov/33767223/
20. Wright KM, et al. (2023). Bioanalytical method validation and application to a phase 1, double-blind, randomized pharmacokinetic trial of a standardized Centella asiatica (L.) Urban water extract product in healthy older adults. Frontiers in Pharmacology. https://pubmed.ncbi.nlm.nih.gov/37680716/
21. Wright KM, et al. (2020). Centella asiatica water extract shows low potential for cytochrome P450-mediated drug interactions. Drug Metabolism and Disposition. https://pubmed.ncbi.nlm.nih.gov/32581050/
22. Boonyarattanasoonthorn T, et al. (2022). Increase water solubility of Centella asiatica extract by indigenous bioenhancers could improve oral bioavailability and disposition kinetics of triterpenoid glycosides in beagle dogs. Scientific Reports. https://pubmed.ncbi.nlm.nih.gov/35190633/
23. Laerum OD, Iversen OH (1972). Reticuloses and epidermal tumors in hairless mice after topical skin applications of cantharidin and asiaticoside. Cancer Research. https://pubmed.ncbi.nlm.nih.gov/4113114/
24. Lim W, et al. (2024). Comparison of the antioxidant potency of four triterpenes of Centella asiatica against oxidative stress. Antioxidants. https://pubmed.ncbi.nlm.nih.gov/38671930/
25. Duggina P, et al. (2015). Protective effect of centella triterpene saponins against cyclophosphamide-induced immune and hepatic system dysfunction in rats. Journal of Physiology and Biochemistry. https://pubmed.ncbi.nlm.nih.gov/26168711/

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