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Omnia Sana · Plant Monograph

Horse Chestnut

Aesculus hippocastanum

Family SapindaceaeParts used Seed (standardised extract)Also known as Conker tree, Buckeye

This monograph compiles 2 documented constituents, 3 pharmacological actions, 7 traditional / indicated uses, supported by 8 cited sources, drawn directly from the Omnia Sana plant database.

Key Constituents

Triterpene saponins (escin / aescin)[1, 2, 3, 4]

The active mixture responsible for the venotonic and anti-oedematous effects; extracts are standardised to it. Escin is available as oral drages and a transdermal gel, with efficacy shown in chronic venous insufficiency and blunt-trauma injury.

Triterpene saponinsTerpenes / terpenoidsSaponinsEscin (aescin)
Flavonoids and coumarins (aesculin)[1]

Supporting constituents of the seed.

FlavonoidsCoumarins

Pharmacological Actions

Anti-inflammatory[3]

Anti-oedematous and anti-inflammatory - escin reduces vascular permeability in inflamed tissue and exerts venotonic effects on veins

Anti-oedematous (reduces swelling)[3]

Anti-oedematous and anti-inflammatory - escin reduces vascular permeability in inflamed tissue and exerts venotonic effects on veins

Venotonic / vasoprotective[3]

Anti-oedematous and anti-inflammatory - escin reduces vascular permeability in inflamed tissue and exerts venotonic effects on veins; Relief of haemorrhoid symptoms (venotonic)

Traditional & Indicated Uses

Arthritis / joint pain[1, 3, 5, 6]Traditional · 2/10

inferred from anti-inflammatory action

more plants for arthritis / joint pain →detailed sources →
Haemorrhoids[3]Traditional · 2/10

Relief of haemorrhoid symptoms (venotonic)

more plants for haemorrhoids →detailed sources →
Inflammation (general)[1, 3, 5, 6]Traditional · 2/10

inferred from anti-inflammatory action

more plants for inflammation (general) →detailed sources →
Pain (general)[2, 7, 8]Good · 7/10

Chronic venous insufficiency - reduces leg pain, swelling (oedema), heaviness and itching; supports varicose veins

more plants for pain (general) →detailed sources →
Skin irritation[3]Traditional · 2/10

inferred from anti-inflammatory action

more plants for skin irritation →detailed sources →
Swelling / fluid retention[2, 7, 8]Good · 7/10

Chronic venous insufficiency - reduces leg pain, swelling (oedema), heaviness and itching; supports varicose veins

more plants for swelling / fluid retention →detailed sources →
Varicose veins[2, 7, 8]Good · 7/10

Chronic venous insufficiency - reduces leg pain, swelling (oedema), heaviness and itching; supports varicose veins

more plants for varicose veins →detailed sources →

Safety, Cautions & Contraindications

Safety note[2]Info

Use only standardised, processed seed extract. Raw conkers, leaves and bark contain toxic esculin and can cause poisoning - never eat raw horse chestnut.

Safety note[2]Caution

May increase bleeding risk, so use caution with anticoagulant/antiplatelet medicines; use caution in kidney disease and avoid in pregnancy and breastfeeding.

References & Sources

  1. Cheong, D.H.J., Arfuso, F., Sethi, G., Wang, L., Hui, K.M., Kumar, A.P. and Tran, T (2018) 'Molecular targets and anti-cancer potential of escin', Cancer Letters. doi:10.1016/j.canlet.2018.02.027 Preclinical
    https://doi.org/10.1016/j.canlet.2018.02.027
  2. Pittler, M.H. and Ernst, E (2012) 'Horse chestnut seed extract for chronic venous insufficiency', Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD003230.pub4 Meta-analysis / review
    https://doi.org/10.1002/14651858.CD003230.pub4
  3. Gallelli, L (2019) 'Escin: a review of its anti-edematous, anti-inflammatory, and venotonic properties', Drug Design, Development and Therapy, pp. 3425--3437. doi:10.2147/DDDT.S207720 Preclinical
    https://doi.org/10.2147/DDDT.S207720
  4. Wu, X.J., Zhang, M.L., Cui, X.Y., Gao, F., He, Q., Li, X.J., Zhang, J.W., Fawcett, J.P. and Gu, J.K (2011) 'Comparative pharmacokinetics and bioavailability of escin Ia and isoescin Ia after administration of escin and of pure escin Ia and isoescin Ia in rat', Journal of Ethnopharmacology, 139(1), pp. 201--206. doi:10.1016/j.jep.2011.11.003 Preclinical
    https://doi.org/10.1016/j.jep.2011.11.003
  5. Cheong, D.H.J., Arfuso, F., Sethi, G., Wang, L., Hui, K.M., Kumar, A.P. and Tran, T (2018) 'Molecular targets and anti-cancer potential of escin', Cancer Letters, pp. 1--8. doi:10.1016/j.canlet.2018.02.027 Preclinical
    https://doi.org/10.1016/j.canlet.2018.02.027
  6. Domanski, D., Zegrocka-Stendel, O., Perzanowska, A., Dutkiewicz, M., Kowalewska, M., Grabowska, I., Maciejko, D., Fogtman, A., Dadlez, M. and Koziak, K (2016) 'Molecular Mechanism for Cellular Response to beta-Escin and Its Therapeutic Implications', PLoS One, 11(10). doi:10.1371/journal.pone.0164365 Preclinical
    https://doi.org/10.1371/journal.pone.0164365
  7. Gloviczki, M.L., Kakkos, S.K., Urbanek, T., Chuback, J. and Nicolaides, A (2025) 'The role of venoactive compounds in the treatment of chronic venous disease', Journal of Vascular Surgery: Venous and Lymphatic Disorders, 13(5). doi:10.1016/j.jvsv.2025.102258 Preclinical
    https://doi.org/10.1016/j.jvsv.2025.102258
  8. Santiago, F.R., Grillo, L., Amore, M., Carmelino, C., Trejo, J.M.R. and Ulloa, J.H (2026) 'Venoactive drugs in the management of chronic venous disease: A critical appraisal of the evidence and comparison with international guidelines', Vascular Pharmacology. doi:10.1016/j.vph.2026.107614 Preclinical
    https://doi.org/10.1016/j.vph.2026.107614

Record last updated 2026-06-14 · Provenance: website+pubmed+symptom-tool · Status: verified

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. Always consult a qualified practitioner before using medicinal plants.

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Generated June 22, 2026 from omniasana.bio