2 Application kit (medium to short hair, long & thick hair 1 application) Protects and repairs hair during color, highlights, hight lift colors, bleaching, ombre, balayage, toners, perms, straightening & relaxer chemical services without adjusting the manufacturers suggested mixing / timing directions. Can be used with all brands of product. Every kit comes with easy to understand how to use insert & booklet in English, Spanish and French. ALL hd PLEX protects and prevents damage and has the primary function of restoring already damaged hair like as it was when you were teenager. Use ALL hd PLEX Amazing Shampoo and Conditioner, which have the same amino acid group, at home to guarantee new bond that attached to the hair and prolonged great results. There are many shampoos & conditioners out there, regardless of the price & famous brand names, that they are very harsh, full of sulfates and high in Ph levels can very easily dry your hair, and strip the new bonds that you added with your ALL hd PLEX Treatment.