Working as part of your beauty sleep routine, Alterna’s Caviar Restructuring Bond Repair Leave-In Overnight Serum delivers moisture to help replenish the appearance of dry, damaged hair. The formula utilises Caviar Bond Enforcing Technology, which targets the hair cuticle to help reduce the appearance of breakage and split ends. Ideal for straight, wavy, curly and coiled hair, the overnight hair serum leaves your lengths feeling resilient.