This Restructuring Bond Repair Leave-in Overnight Serum from the Caviar Anti-Aging collection by Alterna is formulated to work its magic while you sleep, delivering intensive repair and revitalization to your hair. Infused with advanced bond-repairing technology, this potent serum targets structural weaknesses within the hair fiber, promoting strength and resilience against future damage. Wake up to hair that feels smoother, looks healthier, and is visibly rejuvenated.