The bark of horse chestnut contains the active compounds exceeding the activity of compounds contained in the seeds and flowers of horse chestnut (flavonoids, coumarin, tannins and triterpenes), anti-inflammatory and anti-exudative (sealing capillaries and small blood vessels), and anti-edematous in the epidermis and within the subcutaneous tissue and internal organs (also brain). Applied topically (burns, frostbite) and internally, available as preparations at www.muscle-zone.pl