UNO Hair Serum with Keratin and Plex is a professional-grade treatment designed for the instant repair of damaged hair. Its advanced formula, enriched with Plex technology penetrates deep into the hair fibers to rebuild broken bonds, smooth the cuticle, and eliminate split ends. This lightweight serum provides a protective barrier against external environmental factors, heat styling, and chemical damage. It leaves hair feeling silky, manageable, and visibly healthier from root to tip.