In hair we trust, Just Keratin........ JUSTK Professional。We dedicate to bring the original power of keratin to our keratin-enhanced products, to restore hair by repairing and providing .long-term conditioning and protection.All our amazing hair can experience the benefits of keratin.ADVANCED JUSTK SMOOTHING SYSTEM.JUSTK Smoothing System provide you with smooth, frizz-free that can be customized to fit your lifestyle, to achieve a sleek and straight result, and with no waiting period,the treatment is finished at the salon so you can walk out and immediately go wash your hair, exercise, just get back to your amazing life.