Bio Ionic iTools Silver Classic Series Ionic Conditioning Brush Hybrid Bristle Vent Is the world's only brush utilizing super-smooth nylon bristles charged with Nano-Ionic Hybrid Mineral that produces high levels of Natural Negative Ions and Far Infrared Energy. With patented Natural Ion Complex molded right into their heat resistant bristles, Bio Ionic Smoothing Brushes provide natural ion therapy with every stroke. Product Benefits: Smoothes, Shines & Softens Hair Conditions & Hydrates Hair Controls Frizzies & Static Faster Blow-Drying Longer Lasting Styles Reduces Tearing, Breakage & Split-Ends Removes Odor & Product Build-Up