The Ionic Dry Brush combines natural and ultra-fine copper bristles. During the brushing motion, the copper bristles generate new energy in the form of negative ions, driving out free radicals (which are notably responsible for premature skin ageing). Also known as "gharsana", dry brushing is one of the traditional rituals of age-old Ayurveda practices. A few minutes of brushing a day promotes better blood and lymphatic circulation for lighter legs, firmer skin, gentle elimination of dead cells, and improved cell regeneration (which also helps to reduce the appearance of stretch marks). The dry brushing technique is also known to strengthen the body's immune response, making it particularly valuable during cold and flu season.