Horse chestnut seed extract

Horse chestnut seed extract is a herbal remedy derived from the seeds of the horse chestnut tree (Aesculus hippocastanum). It contains active compounds, primarily aescin (also spelled escin), which have been studied for various medicinal properties. The extract is most commonly used for treating chronic venous insufficiency (CVI), a condition characterized by poor blood flow in the leg veins that can cause symptoms like swelling, pain, and varicose veins. Clinical research suggests that standardized horse chestnut seed extract can be effective for short-term treatment of CVI symptoms, with efficacy comparable to compression therapy in some studies[1][6][8]. Horse chestnut seed extract works primarily through its anti-inflammatory properties. The active component aescin appears to inhibit hyaluronidase (an enzyme involved in proteoglycan degradation), reduce swelling, and improve vascular function[6][8][10]. It may also help seal leaking capillaries, improve vein elasticity, and reduce inflammation[10]. ## Safety and Precautions It's important to note that only standardized horse chestnut seed extract products that have had the toxic component esculin removed should be used. Raw horse chestnut seeds, bark, flowers, and leaves contain esculin and are unsafe for consumption[1]. Common side effects may include: - Digestive issues (nausea, stomach discomfort) - Headache and dizziness - Itching[1][2] More serious adverse reactions have been reported in rare cases, including: - Allergic reactions - Liver injury - Kidney complications - Cardiac issues (including a reported case of acute pericarditis)[5][7] Horse chestnut is contraindicated during pregnancy and breastfeeding, in children, and in people with bleeding disorders, digestive problems, liver disease, kidney disease, or latex allergies[1]. It should be discontinued at least two weeks before surgery due to potential effects on blood clotting[1]. ## Dosage and Administration Standardized horse chestnut seed extract is typically administered in the following forms: - Oral tablets containing 250-312.5 mg of extract (equivalent to 50-100 mg of aescin) taken twice daily - Topical gels containing 2% aescin for external use[9] The extract is available as a dietary supplement in many countries, including Germany where it's the third most common single-herb product after ginkgo and St. John's wort[10].

Brand names

JenequrMai-Zhi-LingMaizhilinVenastatReparilEssavenVenoplant

Other names

Aesculus hippocastanum extractescinaescinHCSE