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ingestible · for hemorrhoids

Horse Chestnut Seed Extract (Aescin)

Reviewed by the Nimbera editorial team · Last updated May 2026

Pittler & Ernst 2012 Cochrane systematic review (PMID 23152216) - meta-analysis of 17 RCTs found HCSE significantly reduced leg pain (WMD -42.4 mm VAS) and leg volume (WMD -32.1 ml) versus placebo in chronic venous insufficiency. Aescin's venotonic mechanism directly applies to hemorrhoidal venous dilation.$15-$35 per month.

How to use

Take a standardised horse chestnut seed extract supplement providing 50 mg of aescin twice daily with food, as used in trials. Look for products standardised to 16-20% aescin content. Allow 4-8 weeks for full effect.

How it works

Aescin (the active triterpenoid saponin) inhibits the enzyme hyaluronidase, which breaks down the glycocalyx lining of vascular walls. This tightens capillary pores, reduces abnormal fluid leakage into surrounding tissue, and strengthens venous tone - directly countering the vascular laxity underlying hemorrhoids.

Where to buy

Health food stores and online (look for products standardised to aescin content, branded as Venostasin, Venastat, or generic HCSE). Not universally available in pharmacies.

Typical cost: $15-$35 per month.

Safety notes

Avoid during pregnancy and breastfeeding. Use with caution in kidney or liver disease. May interact with anticoagulants (warfarin, aspirin) - consult a pharmacist or doctor if taking blood-thinning medications. Do not use raw, unprocessed horse chestnut seeds, which contain the toxic esculin glycoside.

Drug & supplement interactions

  • Always tell your doctor or pharmacist about any supplements you take.
  • Interactions can occur with prescription medications, blood thinners, and immunosuppressants.
  • Herbal remedies can affect how the body absorbs or metabolises drugs.
  • Check drugs.com interactions checker before starting.

Clinical source

Pittler & Ernst 2012 - Cochrane Database Syst Rev (PMID 23152216)

This information is compiled from primary clinical literature and is for informational purposes only. It is not a substitute for professional medical advice. Read our full disclaimer.