Farouk Systems USA BioSilk Silk Therapy 34 oz Protect and maintains hair and skin in optimum condition. Light-weight replenishing treatment. Great when used with flat iron. Brilliant high gloss shine. Lock in moisture. Sunscreens safeguard hair from possible UV damage. Concentrated silk, fortified with botanicals and Vitamin E impart a smooth and silky feel while providing a brilliant high gloss shine. Will not build up or weigh hair down. Silk Therapy is ideal lightweight replenishing treatment to protect and maintain hair and skin in optimum condition.