nsb herbals deep nourishing hair spa has the goodness of keratin which makes your hair smooth and easier to manage. Keratin works by smoothing down the cells that overlap to form your hair strands. The layers of cells, called the hair cuticle, absorb the keratin, resulting in hair that looks full and glossy. It reduces itching and moisturizes scalp. This product cleanses the scalp and removes all grime and dirt from hair. It calms,soothes and invigorates the scalp with every use. It is suitable for all types of hair. The moisturizing agents in this cream based formula ensure quick rejuvenation of dry and damaged hair.