Details: Experience the revolutionary power of Redken's Acidic Bonding Concentrate 24/7 Night & Day Serum. This hair treatment repairs and strengthens processed, damaged hair. Acidic Bonding Concentrate 24/7 Night & Day Serum is a game-changer for those with processed or damaged hair. It is a luxurious elixir that nourishes and revitalizes your hair while you sleep.