Horse Chestnut Extract is primarily derived from the seeds of the horse chestnut tree (Aesculus hippocastanum), with its core active component aescin standardized through modern extraction processes. It has a long history of use in traditional European medicine. Contemporary extraction techniques ensure stable aescin content (typically 16%-20%). Horse Chestnut Extract appears as a yellowish-brown powder with a bitter taste and good water solubility.

The core efficacy of Horse Chestnut Extract lies in improving venous function and providing anti-inflammatory effects. Aescin enhances venous tone, reduces vascular permeability, and effectively alleviates symptoms such as leg swelling, heaviness, and varicose veins. Its anti-inflammatory properties inhibit edema formation and the release of inflammatory mediators. Additionally, the extract exhibits antioxidant activity, protecting vascular endothelial cells. Clinical studies confirm its effectiveness in reducing discomfort associated with chronic venous insufficiency (CVI), along with auxiliary hemostatic and microcirculation-improving effects.

Horse Chestnut Extract is primarily used in health products targeting venous circulation improvement, such as capsules or gels for relieving leg edema and varicose veins. In pharmaceuticals, it is formulated into prescription or over-the-counter medications for chronic venous insufficiency. The cosmetics industry incorporates it into skincare products for reducing periorbital puffiness and dark circles, as well as slimming lotions. In sports medicine, it is applied to alleviate muscle fatigue and injury-related swelling. In recent years, its use in topical pain relief ointments and post-operative care products has also been growing.