Silk Therapy is ideal lightweight replenishing treatment to protect and maintain hair and skin in optimum condition. 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. Sunscreens safeguard hair from possible UV damage. Biosilk Silk Therapy contains added UV protection which protects hair from sun. Silk proteins help fortify hair while adding gloss and shine. ???????