When you wash your hair, the shampoo opens the struttura surface of the hair – the cuticle. For this reason it is important to add una After washing, it helps to close the cuticle. This is exactly what Aussie SOS Sooth & Hydrate conditioner does. In addition to closing the hair fibers, it provides nourishment, hydration, and softening, essential for beautiful, shiny, and healthy hair. It protects hair from mechanical damage and dryness, and smoothes the surface, helping to soften it and making it easier to comb and perform subsequent treatments.