BIOSILK SILK THERAPY SHAMPOO 12oz BioSilk Silk Therapy Shampoo with botanical extracts and herbs is ideal for all hair types and leaves hair healthy and manageable. Silk proteins penetrate hair to condition and create incredible shine. DIRECTIONS Apply shampoo to damp hair and work into a rich lather. Rinse thoroughly. Repeat if desired. Use with BioSilk Silk Therapy Conditioner. Not tested on animals.