The Restructuring Bond Repair Leave-In Treatment Mousse by Alterna is a hair styling product that aims to reconstruct and protect severely damaged hair. It features a lightweight mousse formula that contains nourishing ingredients, such as Caviar Bond Enforcing Technology, which works to strengthen hair bonds and reduce breakage, resulting in healthy, shiny hair. The mousse is designed to be applied to damp hair and helps to restore damaged strands from within, while also sealing split ends, smoothing frizz and flyaways, and protecting hair from heat and environmental damage. It provides long-lasting hold and styling control, making it a great addition to any daily hair care routine. Overall, Alterna's Restructuring Bond Repair Leave-In Treatment Mousse is a great choice for those who want to restore and protect damaged hair while achieving a beautiful, healthy-looking style.