Farouk Systems Original Silk Therapy is a weightless leave-in treatment that is perfect for repairing, smoothing, and protecting all hair types. This paraben-free treatment is made with silk proteins that replenish and reconstruct damaged hair, leaving it looking and feeling healthy and shiny. The 5.64 fl oz (150 ml) bottle is the perfect size for at-home use or for taking on the go. Farouk Systems Original Silk Therapy is not tested on animals and is made in the USA. Add this amazing product to your hair care routine and enjoy the benefits of silky, smooth, and healthy-looking hair.