We ask a lot of our hair when we grow it out long, and it needs support. Try the L'Oreal Professionnel Serie Expert Pro Longer Masque, a treatment formulated to support and care for long hair, working against breakage and building volume back into your lengths. Think of it as a one-two punch: this hair mask works to prevent breakage, and also to add body to the hair. The goal is consistently lush, thick hair from root to tip.