Diane Extra Night Repair Shampoo is a Japanese haircare product designed for overnight deep repair of damaged hair. This silicone-free formula contains organic argan oil, night repair keratin, and silk amino acids to nourish and restore hair while you sleep. With a soothing midnight berry fragrance, it's ideal for those with dry, frizzy, or chemically-treated hair. The shampoo is part of a series that includes a matching treatment and hair mask, offering comprehensive care for stressed tresses.