Hair is made up of protein. Every touch, every treatment, every style you love—it all rewrites your hair’s protein. When protein is damaged, hair’s look and feel is compromised. That’s why Nexxus uses protein science not just to repair hair but to restore its ability to perform. It isn’t about one perfect hair day. It’s about a lifetime of style, built strand by strand. That’s where FLEXX-ADAPT™ Technology comes in—an advanced system with multiple modes of action. It neutralizes odor molecules o

Free from Does Not Contain Declaration Obligatory Allergens.